question stringlengths 200 50k | answer stringclasses 1
value | source stringclasses 2
values |
|---|---|---|
## Hitori
Posted on: January 21st, 2014 by
Try a game of Hitori. The object of Hitori is to eliminate cells in the grid until there are no duplicates in any row or column. To eliminate a cell, it must be turned black by clicking on it. You must do this, however, without placing any black cells next to each other on a ... | HuggingFaceTB/finemath | |
Associated Topics || Dr. Math Home || Search Dr. Math
### What is a slide rule?
```
Date: 07/27/97 at 14:59:59
From: Cherie
Subject: What is a slide rule?
Hi,
My parents once showed me this funny slidey thing called a "slide
rule." It looked really confusing to me. What does a slide rule do
and how does it work?
... | HuggingFaceTB/finemath | |
Sale!
# CS/ECE/ME532 Assignment 5 solution
Original price was: \$35.00.Current price is: \$28.00.
Category:
## Description
5/5 - (1 vote)
1. Here we continue the problem studied in Activity 11. Let a 4-by-2 matrix X have
SVD X = USV T where U =
1
2
1 1
1 −1
1 −1
1 1
, S =
1 0
0 γ
#
, and V = √
1
2
1 1
1 −1
#
... | HuggingFaceTB/finemath | |
# In the figure, radius of the circle is 14 cm, then the shaded area is
Video Solution
|
Step by step video & image solution for In the figure, radius of the circle is 14 cm, then the shaded area is by Maths experts to help you in doubts & scoring excellent marks in Class 10 exams.
Updated on:21/07/2023
### Knowled... | HuggingFaceTB/finemath | |
# #3 Top Techniques To Check Fibonacci Series In Python Nowadays, Python is one of the growing programming languages, and its users are experimenting with several unique functions to perform a task with ease. The Fibonacci series is one of those. Well, it has been seen that some of the traders always believe that Fibon... | HuggingFaceTB/finemath | |
# Cooking the books on VSWR
Having recently seen the suggestion that …
Most tools and most derivations of SWR will produce negative SWR reports because they are more interested in mathematics than in measurements you can make with a simple RF volt meter.
…, this article explores the expected voltage on a practical t... | HuggingFaceTB/finemath | |
# Basic Mathematical Operations with Polynomials
In Mathematics, a polynomial is an expression that consists of variables, constant, and mathematical operators. The exponents of the variables are positive integers, whereas the constants are real numbers. The polynomial cannot have a negative value exponent, variable i... | HuggingFaceTB/finemath | |
Question
# We assume that we have selected two independent random samples from populations having proportions $p_1$ and $p_2$ and that $\hat{p}_1=800 / 1,000=.8$ and $\hat{p}_2=950 / 1,000=.95$.Calculate a $95$ percent confidence interval for $p_1-p_2$. Interpret this interval. Can we be $95$ percent confident that $p... | HuggingFaceTB/finemath | |
# Calculate in C the ecuation: (1+i√3)z^5=1+i
sciencesolve | Certified Educator
You need to solve for z the given equation, such that:
`(1 + isqrt3)*z^5 = 1 + i`
Isolating `z^5` to one side, yields:
`z^5 = (1 + i)/(1 + isqrt3) => z^5 = ((1 + i)(1 - isqrt 3))/(1^2 - 3i^2)`
`z^5 = (1 - isqrt3 + i + sqrt 3)/(1 + 3)`... | HuggingFaceTB/finemath | |
Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
It is currently 25 May 2017, 07:08
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Dail... | HuggingFaceTB/finemath | |
1. Chapter 11 Class 11 Conic Sections
2. Serial order wise
3. Miscellaneous
Transcript
Misc 1 If a parabolic reflector is 20 cm in diameter and 5 cm deep, find the focus. Let equation of parabola be y2 = 4ax Here we need to find a (focus) Hence, Taking Point A and finding its coordinates Parabola is 5 cm deep Henc... | HuggingFaceTB/finemath | |
The various scales of rules are discussed here.
Principal Scales
The principal scale on most rules is the one that measures linear length using a system of units. Usually fractions of the unit are easily determined as well. Two methods of indicating the fractions are used:
1. Open divided scales, in this case the dis... | HuggingFaceTB/finemath | |
# What is the meaning of 1 ton of refrigeration?
## What is the meaning of 1 ton of refrigeration?
So, a ton of refrigeration can be defined as the amount of heat removal to produce one ton of ice at 32° from one ton of water at 32°. Now, dividing 288,000 Btu per 24 hours by 24 will equal the same heat removal of 12,... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Cubes & cuboids similar to Skeleton Shapes:
Filter by: Content type:
Age range:
Challenge level:
### There are 34 results
Broad Topics > 3D Geometry, Shape and Space > Cubes & cuboids
### Start Cube Drilling
##### Age 5 to 7 Challenge Level:
Imagine a 3 by 3 by 3 cube... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Investigations similar to New House:
Filter by: Content type:
Stage:
Challenge level:
### There are 145 results
Broad Topics > Using, Applying and Reasoning about Mathematics > Investigations
### New House
##### Stage: 2 Challenge Level:
In this investigation, you mus... | HuggingFaceTB/finemath | |
Temperature Conversion - Fahrenheit to Celsius The metric system uses the Celsius scale to measure temperature. However, temperatures are still measured on the Fahrenheit scale in the U.S. Water freezes at 0o Celsius and boils at 100o Celsius which is a difference of 100o. Water freezes at 32o Fahrenheit and boils at 2... | HuggingFaceTB/finemath | |
# Vectors: Motion in a plane
by mohdhm
Tags: motion, plane, vectors
P: 42 1) A particle starts form the origin at t=0 with an initial velocity having an x compoent and a y component. the particle moves in the xy plane with an x component of acceleration only a) Determine the components of velocity vector at any time ... | HuggingFaceTB/finemath | |
# Cs141 Home/Lecture2
Cs141 Home | Cs141 Home | recent changes | Preferences
/Lecture1 /Lecture3
Euclid's algorithm for greatest common divisor, upper bound on worst-case running time
###### Euclid's algorithm for greatest common divisor
```def gcd3(i,j):
# assumption: i and j are positive integers
if i == j: retu... | HuggingFaceTB/finemath | |
## Only A Test
This is simply a test of the Latex to WordPress converter available here.
$\displaystyle -\sum_{n=1}^\infty \frac{\log n}{n} \times \left\{-1,-1,\cdots,k-1,-1,-1,\cdots,k-1,\cdots \right\}$
where the term ${k-1}$ appears at ${n=0 \bmod k}$.
We can rewrite this as
$\displaystyle -\frac{\partial}{\par... | HuggingFaceTB/finemath | |
# Sudoku Solving Techniques: Single Position
Single position works by looking at a specific row/column/3*3 square and working out if there is only one place a specific number can be placed. Let's look at an example. Consider this Sudoku and look at the hilighted row. We know that the hilighted row must contain the nu... | HuggingFaceTB/finemath | |
### MARGINAL COSTING & C.V.P. ANALYSIS
Formulae for calculations
1. Sales - Variable Cost = Contribution = Fixed Cost + Profit
2. P/V ratio (or C/S ratio) = Contribution ¸ Sales
= Contribution per unit ¸ Selling price per unit
= Change in Contribution ¸ Change... | HuggingFaceTB/finemath | |
India’s No.1 Educational Platform For UPSC,PSC And All Competitive Exam
• 0
Time and Distance
1.Two buses start from a bus terminal with a speed of 20 km/h at interval of 10 minutes. What is the speed of a man coming from the opposite direction towards the bus terminal if he meets the buses at interval of 8 minutes?
E... | open-web-math/open-web-math | |
# venn diagram word problems with answers
## venn diagram word problems with answers
Drawn this way, there are more students on the Venn diagram than we have. Venn diagrams are used to picture the relationship between different groups or things To draw a Venn diagram you start with a big rectangle (called universe) a... | HuggingFaceTB/finemath | |
# Change in volume of liquid under pressure (compressibility)
This online calculator calculates the change in volume of a liquid as a function of pressure using the compressibility coefficient
Everyone knows that gases can be compressed, but liquids can also be compressed. However, compared to gases, liquids have neg... | HuggingFaceTB/finemath | |
Alternative proof for “linear map from product of subspaces to a sum of subspaces is injective if and only if the sum is a direct sum”
For the theorem 3.77 in Axler's linear algebra done right:
Suppose that $$U_1, U_2, \ldots U_m$$ are subspaces of $$V$$. Define a linear map $$\Gamma: U_1 \times U_2 \times U_3 \ldots... | HuggingFaceTB/finemath | |
# Calculate a forecast of the above demand using a 3 and 5 period moving average
In order to determine its target inventory level, each stage of the supply chain moving average or exponential smoothing her target inventory level in each period (using demand forecasting), then longer lead 1425 price variations as discu... | HuggingFaceTB/finemath | |
# Power Level of Motors
Hello. We are a VEX Robotics team in highschool. This is our first year and we’re new to this project. We are using the clawbot. We have already learned to code and are able to use our robot. However, we don’t understand the significance of the power given for the motors. The examples of coding... | HuggingFaceTB/finemath | |
# Approach 1: Keep track of amount robbed using DP
The approach is very similar to House Robber (which I strongly recommend reading first)
Since the array is circular this time, we will keep track of two lists of sums, one with `nums[0]` (`dpl`) and one without `nums[0]` (`dpr`). This way when we reach the last eleme... | HuggingFaceTB/finemath | |
# I ask for \$10 worth of gasoline and its selling for \$1.29 a gallon, find the number of gallons i will receive, to the nearest tenth of a gallon.
cburr | Certified Educator
To solve this problem, you need to divide \$10.00 by \$1.29. When you set up the division problem, you will have two decimal points in the div... | HuggingFaceTB/finemath | |
There can be several usual factors, but there is only one Greatest common factor.
You are watching: Greatest common factor of 36 and 90
Write 36 and 90 together the product of your prime factors.
#36 = 2xx2xx3xx3#
#90= color(white)(xxx)2xx3xx3xx5#
#GCF =color(white)(x)2xx3xx3 color(white)(xxx) =18#
As for all the... | HuggingFaceTB/finemath | |
1. ## Re-arranging an equation.
Need help with a question guys, any help will be most appreciated.
The pressure, p, and volume, V, of a gas undergoing a polytropic process are related by the equation:
p1V1n = p2V2n
where n is the polytropic index.
If p1V1/ T1 = p2V2/ T2
determine and expression for p1 in terms of... | HuggingFaceTB/finemath | |
# Finding appropriate step size for ODE system numerically solved without ODE solver in Matlab
This is a post piggy backing off a post made earlier yesterday, I have made considerable progress towards completion but I'm having difficulty with this part, and I'm sure it's last hurdle I need to get by to have my code ru... | HuggingFaceTB/finemath | |
This handy Math in Focus Grade 4 Workbook Answer Key End of Year Review detailed solutions for the textbook questions.
Test Prep
Multiple Choice
Fill in the circle next to the correct answer.
Question 1.
The digit 9 in 89.4 stands for _________. (Lesson 7.2)
(A) 9 hundredths
(B) 9 tenths
(C) 9 ones
(D) 9 tens So, O... | HuggingFaceTB/finemath | |
# Homework Help: Vector/1-D kinematics help
1. Jul 9, 2004
### mikeyman2010
Hi, can anyone explain to me in detail the logic/physics to this question? I posted it in general physics, & i guess it's the wrong forum. So i'll post my question here:
A riverboat is trying to go north and cross a horizontal river to the ... | HuggingFaceTB/finemath | |
#jsDisabledContent { display:none; } My Account | Register | Help
# Tetrahedral number
Article Id: WHEBN0000509120
Reproduction Date:
Title: Tetrahedral number Author: World Heritage Encyclopedia Language: English Subject: Collection: Publisher: World Heritage Encyclopedia Publication Date:
### Tetrahedral number
... | HuggingFaceTB/finemath | |
×
Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 12 - Problem 41
Get Full Access to College Physics For Ap® Courses - 1 Edition - Chapter 12 - Problem 41
×
# A layer of oil 1.50 mm thick is placed between two microscope slides. Researchers find
ISBN: 9781938168932 372
## Solution for probl... | HuggingFaceTB/finemath | |
# Time at which a projectile reaches a certain height
• enantiomer1
In summary, the conversation discusses a physics question about a baseball being hit at a certain speed and angle. The question asks for the two times when the ball is at a height of 10.0 m. Different methods are suggested, such as trial and error or ... | HuggingFaceTB/finemath | |
# Introduction to Standard Geometrical Tolerance - PowerPoint Presentation
Embed / Share - Introduction to Standard Geometrical Tolerance
## Presentation on theme: "Introduction to Standard Geometrical Tolerance"— Presentation transcript
Introduction to Standard Geometrical Tolerance Datum and Tolerance Accumulation... | HuggingFaceTB/finemath | |
More Difficult coin problem Can anyone share some insight on the variation of the coin problem where you don't know if the counterfit coin is heavier or lighter and still need to do it in 3 weighs? It is keeping me up at night! :') Thank You Sal Sal DiStefano Monday, June 9, 2003 Binyomin Monday, June 9, 2003 I beli... | HuggingFaceTB/finemath | |
# how many parallel lines does a rectangle have
## How Many Parallel Lines Does A Rectangle Have?
Answer: A rectangle has 2 pairs of parallel sides.
## What are parallel lines in a rectangle?
Lesson Summary
A rectangle has two pairs of parallel lines. A square also has two pairs of parallel lines. A parallelogram ... | HuggingFaceTB/finemath | |
Question: You are given 2 identical eggs such that eggs always break if dropped from floors above a particular floor of a 100-storey building. You need to find that particular floor in minimum number of egg droppings.
Answer: What would be the minimum number of drops in worst case if we have only one egg. We have to d... | HuggingFaceTB/finemath | |
# Evaluation of $$\displaystyle\int{\dfrac{1-\tan x}{1+\tan x}}\ dx$$ is:
This question was previously asked in
DSSSB TGT Maths Female Subject Concerned - 22 Sep 2018 Shift 2
View all DSSSB TGT Papers >
1. log (sin x - cos x) + c
2. log (sin x - cot x) + c
3. log (cos x + sin x) + c
4. log (cos x - cot x) + c
Option ... | HuggingFaceTB/finemath | |
# Am I correct or is the book's answer correct
• freshman2013
In summary: I didn't bring it up because I don't know what a book would mean by "significant figures accurate". I would have thought that that would mean that the first four digits had to be correct. But that would make s6 the answer. This is why I think th... | HuggingFaceTB/finemath | |
+0
0
150
1
Vanessa throws a tennis ball in the air. The function h(t) = -15t^2 + 45t + 10 represents the distance in feet, that the ball is from the ground at any time in seconds, t. What is the maximum height of the ball?
Mar 26, 2021
#1
0
We're going to complete the square. :))
h(t) = -15t^2 + 45t + 10
h(t) = ... | HuggingFaceTB/finemath | |
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
### Course: Get ready for Precalculus>Unit 2
Lesson 3: Special products of polynomials
# Polynomi... | HuggingFaceTB/finemath | |
GFG App
Open App Browser
Continue
# Puzzle 40 | (Find missing Row in Excel)
We are given an excel sheet which contains integers from 1 to 50, including both. However, the numbers are in a jumbled form and there is 1 integer missing. You have to write a code to identify the missing integer. Only the logic is required... | HuggingFaceTB/finemath | |
# What volume of water is required to make 0.2N solution from 1600ml of 0.205N solution ?
$(a)\;50ml\qquad(b)\;30ml\qquad(c)\;20ml\qquad(d)\;40ml$
Meq of conc. solution =$1600\times 0.2050$
$\Rightarrow 328$
Let after dilution volume becomes Vml
$328=0.20\times V$
$V=1640ml$
$\therefore$Volume of water used 1640-1600... | HuggingFaceTB/finemath | |
0
# What is the probability of flipping no heads when you flip three identical coins?
Wiki User
2011-03-24 00:26:09
The probability of flipping one coin and getting tails is 1/2. In order to find the probability of multiple events occurring, you find the product of all the events. For 3 coins the probability of get... | HuggingFaceTB/finemath | |
Krishna
0
(i)
Step 1: Examine the summation
EXAMPLE: \sum_{r=1}^{5} a_r = a_1 + a_2 + a_3 + a_4 + a_5
Step 2: Make sure that the given set of numbers arranged in some particular order. Because the question says that the set of numbers in sequence.
Step 3: Explore the given rule
EXAMPLE: x_{n+1} = ax_n - 3
Suc... | HuggingFaceTB/finemath | |
# probability quiz answers
What is the probability of picking a green marble, then a green marble if you do not put back the first marble? Probability Class 9 MCQs Questions with Answers. Quiz: Take The Basic Probability Test Questions! Probabilities can be written as fractions, decimals or percentages. Preview this q... | HuggingFaceTB/finemath | |
# Fixed effects model
(Redirected from Fixed effects)
In econometrics and statistics, a fixed effects model is a statistical model that represents the observed quantities in terms of explanatory variables that are treated as if the quantities were non-random. This is in contrast to random effects models and mixed mod... | open-web-math/open-web-math | |
Ex 14.3
Chapter 14 Class 6 Practical Geometry
Serial order wise
Get live Maths 1-on-1 Classs - Class 6 to 12
### Transcript
Ex 14.3, 2 Given some line segment (π΄π΅) Μ
whose length you do not know, construct (ππ ) Μ
such that the length of (ππ) Μ
twice that of (π΄π΅) Μ
. We are given line seg... | HuggingFaceTB/finemath | |
### 3.115 $$\int \frac{\cosh ^3(c+d x)}{(a+b \tanh ^2(c+d x))^2} \, dx$$
Optimal. Leaf size=128 $\frac{b^2 (6 a+b) \tan ^{-1}\left (\frac{\sqrt{a+b} \sinh (c+d x)}{\sqrt{a}}\right )}{2 a^{3/2} d (a+b)^{7/2}}+\frac{b^3 \sinh (c+d x)}{2 a d (a+b)^3 \left ((a+b) \sinh ^2(c+d x)+a\right )}+\frac{\sinh ^3(c+d x)}{3 d (a+b)... | HuggingFaceTB/finemath | |
# Category: Flipkart
## Introduction to Threaded Binary Tree
What is Threaded Binary Tree?? A binary tree is threaded by making all right child pointers that would normally be null point to the inorder successor of the node (if it exists), and all left child pointers…
## Print All N Length Strings from Given Nu... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Modulus arithmetic similar to Climbing Powers:
Filter by: Content type:
Stage:
Challenge level:
### There are 38 results
Broad Topics > Numbers and the Number System > Modulus arithmetic
### Pythagoras Mod 5
##### Stage: 5 Challenge Level:
Prove that for every right a... | HuggingFaceTB/finemath | |
# 66.43 kg to lbs - 66.43 kilograms to pounds
## 66.43 kg to lbs
Before we go to the more practical part - this is 66.43 kg how much lbs calculation - we are going to tell you a little bit of theoretical information about these two units - kilograms and pounds. So let’s move on.
How to convert 66.43 kg to lbs? 66.43... | HuggingFaceTB/finemath | |
# Video: Finding the Intervals of Increasing and Decreasing of a Polynomial Function
Determine the intervals on which the function π(π₯) = 3π₯Β³ β 9π₯Β² β 4 is increasing and on which it is decreasing.
06:58
### Video Transcript
Determine the intervals on which the function π of π₯ equals three π... | HuggingFaceTB/finemath | |
Inverse function
Inverse function
In mathematics, if ƒ is a function from "A" to "B" then an inverse function for ƒ is a function in the opposite direction, from "B" to "A", with the property that a round trip (a composition) from "A" to "B" to "A" (or from "B" to "A" to "B") returns each element of the ini... | HuggingFaceTB/finemath | |
## Day 14 - Lesson 2.2
##### Learning Targets
• Find the proportion of values in a specified interval in a Normal distribution using Table A or technology.
• Find the value that corresponds to a given percentile in a Normal distribution using Table A or technology.
##### Activity:
Quite possibly the coolest car eve... | HuggingFaceTB/finemath | |
# How do you multiply (3x-15)/(4x^2-2x)*(10x-20x^2)/(5-x)?
Jun 9, 2017
15
#### Explanation:
When multiplying fractions, whether with unknowns in algebra or not, simply multiply the numerators together, and multiply the denominators together, so:
$\setminus \frac{a}{b} \times \setminus \frac{c}{d} = \setminus \frac... | HuggingFaceTB/finemath | |
Welcome to the second-to-last post in our Pokemon Go analysis series. Last time, we trained a sentiment analyzer that will allow us to remove negative tweets from our collection. In this post, we’ll use this analyzer to clean up our data and determine the dominance of each Pokemon Go team in each state. Once we’ve clea... | open-web-math/open-web-math | |
# Find triplets in an array whose AND is maximum
Given an array of positive integers of size n. Find the count of the triplets whose AND is maximum and also find that maximum given that i < j < k where i, j, k are the indices of the numbers.
Assuming that numbers will not be greater than 10^9.
Examples:
Input : a[] ... | HuggingFaceTB/finemath | |
# Regress the illiteracy rate on per capita GNP in 1997. Report the coefficient on per capita GNP and its standard error; what do they tell you? Is the sign of the coefficient what you expected? Explain briefly. What is the t-statistic for this coefficient,
Qualified Writers
Rated 4.9/5 based on 2480 reviews
Exercise... | HuggingFaceTB/finemath | |
# graphing linear equations
Aug 21st, 2015
Anonymous
Category:
Other
Price: \$10 USD
Question description
1. Which of the following two points are on a line perpendicular to the line y = x + 1
o (-4, 6) and (2, 3)
o (5, 8) and (-1, -4)
o (-2, 7) and (1, 1)
o (-2, -4) and (2, -2)
2. Which of the following ... | HuggingFaceTB/finemath | |
Implication in Discrete mathematics
An implication statement can be represented in the form "if....then". The symbol ⇒ is used to show the implication. Suppose there are two statements, P and Q. In this case, the statement "if P then Q" can also be written as P ⇒ Q or P → Q, and it will be read as "P implies Q". In th... | HuggingFaceTB/finemath | |
Solutions by everydaycalculation.com
Add 30/63 and 3/10
30/63 + 3/10 is 163/210.
Steps for adding fractions
1. Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630
2. For the 1st fraction, since 63 × 10 = 630,
30/63 = 30 × 10/63 × 10 = 300/630
3. Likewise, for the 2nd fraction, ... | HuggingFaceTB/finemath | |
# How does induced drag change with velocity?
## How does induced drag change with velocity?
Induced Drag decreases as TAS (True Air Speed) increases. It is inversely proportional to the square of the TAS, therefore, the faster a plane flies, the less induced drag is generated by the wings. Induced Drag decreases as ... | HuggingFaceTB/finemath | |
# What is the slope of the line perpendicular to y=-5/3x+6 ?
##### 1 Answer
Feb 2, 2016
$m = \frac{3}{5}$
#### Explanation:
The slopes of perpendicular lines are negative reciprocals. This means, to find the slope of a perpendicular line, when given slope form is to find the slope (in this case $m = - \frac{5}{3}$... | HuggingFaceTB/finemath | |
PROBLEM 10 – 0146: A collapsible ironing board is constructed so that the
supports bisect each other. Show why the board will always
be parallel to the floor.
Solution: Assume that there is a plane determined by the four non- collinear
points A, B, C, and D. Then the edge of the ironing board,... | HuggingFaceTB/finemath | |
# Video: Finding the Limit at Infinity of a Combination of Rational Functions
Find lim_(π₯ β β) (β4/π₯Β² + 5/π₯ + 8).
02:17
### Video Transcript
Find the limit of negative four over π₯ squared plus five over π₯ plus eight as π₯ approaches infinity.
We have a limit as π₯ approaches infinity here... | HuggingFaceTB/finemath | |
# Find {eq}f'(x), {/eq} if {eq}f(x) = x^3 \cot x. {/eq}
## Question:
Find {eq}f'(x), {/eq} if {eq}f(x) = x^3 \cot x. {/eq}
## Product rule of differentiation:
Assume that {eq}u {/eq} and {eq}v {/eq} be two differentiable functions, then their product {eq}(uv) {/eq} is also differentiable,
The derivative of that pr... | HuggingFaceTB/finemath | |
<meta http-equiv="refresh" content="1; url=/nojavascript/">
You are reading an older version of this FlexBook® textbook: CK-12 Calculus Teacher's Edition Go to the latest version.
# 5.4: Integration
Difficulty Level: At Grade Created by: CK-12
## Indefinite Integrals
As students begin anti-differentiation they will... | open-web-math/open-web-math | |
×
×
# Prove there are infinitely many primes by showing that Qn
ISBN: 9780073383095 37
## Solution for problem 15E Chapter 4.SE
Discrete Mathematics and Its Applications | 7th Edition
• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual ... | HuggingFaceTB/finemath | |
# Momentum operator acting on a bound state doesn't return an eigenvalue although kinetic energy operator does. Why?
We know that $[\hat{H}, \hat{P}]=i\hbar\frac{\mathrm{d}V}{\mathrm{d}x}$, therefore $\hat{H}$ and $\hat{P}$ commute if $\frac{\mathrm{d}V}{\mathrm{d}x}=0$, which is true for $V=0$. In that case the opera... | HuggingFaceTB/finemath | |
# Difficulty in understanding a part in a proof from Stein and Shakarchi Fourier Analysis book.
Theorem 2.1 : Suppose that $f$ is an integrable function on the circle with $\hat f(n)=0$ for all $n \in \Bbb Z$. Then $f(\theta_0)=0$ whenever $f$ is continuous at the point $\theta_0$.
Proof : We suppose first that $f$ i... | open-web-math/open-web-math | |
# Why does current not increase when batteries are connected in parallel?
I built a simple circuit consisting of two battery holders each including x2 1.5 V batteries, a slide switch, a LED and a 100 ohm resistor. The current I measured with a multimeter when the two battery holders were connected in series (and the s... | open-web-math/open-web-math | |
Contents[Show]
Intro
Here we will extract the motor parameters of a 36V, 28" Cute Q-85SX hub motor from the motor graph, with the aim to run ebike simulations in Excel.
Motor parameters
A PM motor (permanent magnetic) can be characterized mainly by these parameters:
• Motor constant k
• Resistance R
• Friction tor... | HuggingFaceTB/finemath | |
# Problems on Percentages
1. Concept of Percentage:
By a certain percent, we mean that many hundredths.
Thus, x percent means x hundredths, written as x%.
To express x% as a fraction: We have, x% = x . 100
Thus, 20% = 20 = 1 . 100 5
To express a as a percent: We have, a = a x 100 %. b b b
Thus, 1 = 1 x 100 % = 25%... | HuggingFaceTB/finemath | |
a.) solve:dy/dx+(2x+(tan^-1y)-(x^3))(1+y²)=0 b.) A particle of unit mass moves in a straight line in a resisting medium which produces resistance kV.If the particle starts with a velocity u from the position S=Sa,show that , as time goes on , the particle approaches the position S=Sa+(u/k).
509 Points
13 years ago
an... | HuggingFaceTB/finemath | |
# LAPO (Kiva partner) and financial vs. social success
We recently looked at Kiva’s largest partner MFI, LAPO (Lift Above Poverty Organization), as part of our evaluation process for an economic empowerment grant in sub-Saharan Africa.
In brief, we found two surprising pieces of information:
• LAPO is very profitabl... | open-web-math/open-web-math | |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
You are viewing an older version of this Concept. Go to the latest version.
Amplitude
Measure of a wave's height from the center axis.
0%
Progress
Practice Amplitude
Progress
0%
Amplitu... | HuggingFaceTB/finemath | |
# Roman Numbers: Learn 7 Roman Symbols
Roman numbers are a part of a numeral system that was used in ancient Rome to represent any number using 7 different symbols. The seven different symbols used to represent any number in the roman number system include I, V, X, L, C, D, and M. The roman symbols:
• I indicate 1
• ... | HuggingFaceTB/finemath | |
# Thread: Find where the two graphs intersect.
1. ## Find where the two graphs intersect.
Hello. I'm currently having problems on trying to find the intersection point of these two trig graphs:
a(t) = -175cos(0.23t) - 75
b(t) = 172sin(0.23t) - 80
0 ≤ t ≤ 30
-----
Well, I assume this would be the first step:
-17... | HuggingFaceTB/finemath | |
# maths
1.how many non congruent right triangles with positive integer leg lengths have areas that are numerically equal to 3 times their perimeters?
2.a triangle with side lengths in the ratio 3:4:5 is inscribed in a circle of radius 3.what is the area of the triangle?
3.what is the area of the incircle of a triang... | HuggingFaceTB/finemath | |
How 9 Cheenta students ranked in top 100 in ISI and CMI Entrances?
# Rational Numbers | Singapore Mathematics Olympiad, 2013
Try this beautiful problem from Singapore Mathematics Olympiad based on rational numbers.
## Problem - Rational Numbers (SMO )
Find the number of positive integer pairs (a,b) satisfying $a^... | HuggingFaceTB/finemath | |
# Main Categories
Total:
\$0.00
Whoops! Something went wrong.
# Lilly's mouse pretty Purse counting number sense ESL COMMON CORE
Common Core Standards
Product Rating
3.1
2 ratings
File Type
PDF (Acrobat) Document File
978 KB|10 pages
Product Description
Inspired by Lilly's Purple Plastic Purse.
(Could be used as... | HuggingFaceTB/finemath | |
# NCERT solutions for Class 11 Mathematics Textbook chapter 12 - Introduction to Three Dimensional Geometry [Latest edition]
## Chapter 12: Introduction to Three Dimensional Geometry
[Page 271]
### NCERT solutions for Class 11 Mathematics Textbook Chapter 12 Introduction to Three Dimensional Geometry[Page 271]
Q 1 ... | HuggingFaceTB/finemath | |
It is currently 22 Nov 2017, 17:34
### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
we will pick new questions that match your level based o... | HuggingFaceTB/finemath | |
# 2.2 Pressure, temperature, and rms speed (Page 8/18)
Page 8 / 18
$\lambda =\frac{V}{4\sqrt{2}\pi {r}^{2}N}.$
In an ideal gas, we can substitute $V\text{/}N={k}_{\text{B}}T\text{/}p$ to obtain
$\lambda =\frac{{k}_{\text{B}}T}{4\sqrt{2}\pi {r}^{2}p}.$
The mean free time $\tau$ is simply the mean free path div... | open-web-math/open-web-math | |
# Can every Turing Machine be translated into a SAT formula?
For the proof of "Cook-Levin Theorem", for a Turing Machine $$M$$ that accepts a language $$L \in NP$$ and input $$x \in \{0,1\}^*$$, we can create a SAT Formula, that is satisfiable if and only if $$M$$ accepts $$x$$. Could we adopt this construction so tha... | open-web-math/open-web-math | |
# How do you solve using the completing the square method 9x^2-12x+5=0?
Mar 7, 2016
I found:
${x}_{1} = \frac{2 + i}{3}$
${x}_{2} = \frac{2 - i}{3}$
#### Explanation:
Let us manipulate a bit our expression (take the $5$ to the right):
$9 {x}^{2} - 12 x = - 5$
let us add and subtract $4$ to the left:
$9 {x}^{2} - 12... | HuggingFaceTB/finemath | |
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
# Worked example: Riemann sums in summation notation
Here we express the approximation of the area... | HuggingFaceTB/finemath | |
# unit step signal as sum of impulses from MIT OCW video
From MIT's OCW on Signals and Systems by A. Oppenheim, at 4:30 mark https://www.youtube.com/watch?v=jGk3w1b7UXQ&index=3&list=PLLNp7XoiSLQYygYw8Mzt763zZCQdzCZcd
He said that by forming the sum from minus infinity to some value n of a unit impulse function is equ... | HuggingFaceTB/finemath | |
# Generalized Euler sum $\sum_{n=1}^\infty \frac{H_n}{n^q}$
I found the following formula
$$\sum_{n=1}^\infty \frac{H_n}{n^q}= \left(1+\frac{q}{2} \right)\zeta(q+1)-\frac{1}{2}\sum_{k=1}^{q-2}\zeta(k+1)\zeta(q-k)$$
and it is cited that Euler proved the formula above , but how ?
Do there exist other proofs ?
Can we... | HuggingFaceTB/finemath | |
# What is the compound interest on $15689 at 29% over 25 years? If you want to invest$15,689 over 25 years, and you expect it will earn 29.00% in annual interest, your investment will have grown to become $9,127,209.53. If you're on this page, you probably already know what compound interest is and how a sum of money c... | HuggingFaceTB/finemath | |
# What Begins With T Ends With T And Has T in It? Riddle: Check The Riddle Answer And Explanation Here
## What Begins With T Ends With T And Has T in It? Riddle
What Starts With T And Ends With T? Riddle has created a lot of buzz in the social media. But to be able to answer the riddle one must know the complete ques... | HuggingFaceTB/finemath | |
# particle moving on the astroid at constant frequency
In parametric Cartesian equations, the astroid can be represented by
$x=a\cos^{3}\omega t,\quad y=a\sin^{3}\omega t,$
where $a>0$ is a known constant, $\omega>0$ is the constant angular frequency, and $t\in[0,\infty)$ is the time parameter. Thus the position ve... | HuggingFaceTB/finemath | |
NCERT Solutions for Class 10 Maths Chapter 11 Constructions Ex 11.1
Ex 11.1 Class 10 Maths Question 1.
Draw a line segment of length 7.6 cm and divide it in the ratio 5:8. Measure the two parts.
Solution for Ex 11.1 Class 10 Maths Question 1
Ex 11.1 Class 10 Maths Question 2.
Construct a triangle of sides 4 cm, 5 cm... | HuggingFaceTB/finemath | |
MORE IN Discrete Structures
MU Computer Engineering (Semester 3)
Discrete Structures
May 2013
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary
1 (a) Prove by Mathematical Induction... | HuggingFaceTB/finemath | |
# RD Sharma Class 9 Solutions Chapter 12 Heron’s Formula Ex 12.3
## RD Sharma Class 9 Solutions Chapter 12 Heron’s Formula Ex 12.3
These Solutions are part of RD Sharma Class 9 Solutions. Here we have given RD Sharma Class 9 Solutions Chapter 12 Heron’s Formula Ex 12.3
Other Exercises
Question 1.
In two right trian... | HuggingFaceTB/finemath |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.