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# Puzzles
## Archive
Show me a random puzzle
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## Largest odd factors
Pick a number. Call it $$n$$. Write down all the numbers from $$n+1$$ to $$2n$$ (inclusive). For example, if you picked 7, you would write:
$$8,9,10,11,12,13,14$$
Below each number, write down its ... | HuggingFaceTB/finemath | |
# Aptitude - Problems on Numbers - Discussion
Discussion Forum : Problems on Numbers - General Questions (Q.No. 4)
4.
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio b... | HuggingFaceTB/finemath | |
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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127031 Let f(n) = exp(Pi*sqrt(n)); seq... | HuggingFaceTB/finemath | |
# Is 1cc The Same As 1 Ml?
## Is 10cc equal to 10 mL?
1ml is equal in volume measurement to 1 cc.
equal to 1ml= 1 cc or cm3; So, 10 ml is close to 10 cm3 or 10cc..
## How much is 5 ml of liquid?
Measurement conversion tips: 1 teaspoon (tsp) = 5 milliliters (mL) 3 teaspoons (tsp) = 1 tablespoon (tbsp)
## Why is CC... | HuggingFaceTB/finemath | |
Free Algebra Tutorials!
Home Point Arithmetic Operations with Numerical Fractions Multiplying a Polynomial by a Monomial Solving Linear Equation Solving Linear Equations Solving Inequalities Solving Compound Inequalities Solving Systems of Equations Using Substitution Simplifying Fractions 3 Factoring quadratics Spec... | HuggingFaceTB/finemath | |
# Solve 2t-3(t+8)=-(1-4t)+10 for t. Simplify all fractions or roun
Solve $$\displaystyle{2}{t}-{3}{\left({t}+{8}\right)}=-{\left({1}-{4}{t}\right)}+{10}$$ for t. Simplify all fractions or round decimals to two places.
• Live experts 24/7
• Questions are typically answered in as fast as 30 minutes
• Personalized clear... | HuggingFaceTB/finemath | |
# Confusion about principal component and major axis of the ellipse corresponding to the covariance matrix
Based on my understanding, in PCA, we try to find a linear combination of axes such that the variance in that direction is maximized. If variables have the covariance matrix $$\Sigma$$, then, the first component ... | HuggingFaceTB/finemath | |
# multivariate data analysis questions and answers
A Little Book of R for Multivariate Analysis. Appendices A-C present outputs from some computations based on that set of data as follows: a) Appendix A presents the MINITAB outputs (a statistical package) for the univariate t-tests … … What are the best practices for ... | HuggingFaceTB/finemath | |
# use the product rule to simplify the radical
label Algebra
account_circle Unassigned
schedule 1 Day
account_balance_wallet \$5
square root of 60
Jul 23rd, 2015
--------------------------------------------------------------------------------------------------------------
According to the product rule for radicals... | HuggingFaceTB/finemath | |
# Kickball The Count
The count keeps track of the number of strikes and balls for the player currently at-bat. Get ready to learn about the count in kickball.
## Introduction
Three (3) strikes and the kicker is out (strikeout). Four (4) balls and the kicker is given a walk for a base on balls.
In this tutorial, we ... | HuggingFaceTB/finemath | |
# How do you write an equation of a circle that passes through (0,0), (0,8), (6,0)?
Apr 11, 2016
The equation of the circle may be written:
${\left(x - 3\right)}^{2} + {\left(y - 4\right)}^{2} = {5}^{2}$
#### Explanation:
For any pair of points that lie on the circle, the centre of the circle will lie on a perpend... | HuggingFaceTB/finemath | |
# How to Calculate Arithmetic Average: The Very Basics
## Arithmetic average basics
Arithmetic average, or arithmetic mean, or just mean, is the very basic statistical measure. It provides quick and easy information about general level of values in a data set – it is one of the measures of central tendency.
## Why t... | HuggingFaceTB/finemath | |
# How do I generate Maxwell-Boltzmann variates using a uniform distribution random number generator?
I am doing a molecular dynamics simulation. I need to assign initial velocities to the atoms. I want to assign the initial velocities which follow the Maxwell-Boltzmann distribution. How do I calculate such initial vel... | HuggingFaceTB/finemath | |
You are on page 1of 4
# Exercises: Integration
## Relevant Sections of MEM
Chapter 8: 8.5 - 8.6
Chapter 9: 9.3
Chapter 8: 8.7.6
A Basic Concepts
A-1 Evaluate
_
3
0
f(x) dx where f(x) =
_
_
_
x for 0 x < 1
2(1 + x) for 1 x < 2
x 1 for 2 x 3
.
A-2 Show that if f
e
is an even function and f
0
is an odd function, then
_... | HuggingFaceTB/finemath | |
# Question #4e0b6
Sep 18, 2017
$n = 2$
#### Explanation:
You want all numbers on one side and variables on the other,
so to get rid of the $- 9$ from $- 9 n$, you have to bring the $9$ over.
HOWEVER, the only way to do so is to divide both sides by $- 9$.
$\frac{- 18}{-} 9 = \frac{- 9 n}{-} 9$
$2 = n$ | HuggingFaceTB/finemath | |
# How do you solve tan(x)(tanx+1)=0?
Mar 29, 2018
$x = 0 , \frac{3 \pi}{4} , \pi , \frac{7 \pi}{4} , , 2 \pi , \frac{11 \pi}{4} , 3 \pi , \frac{15 \pi}{4} , \ldots .$
#### Explanation:
$\tan x \left(\tan x + 1\right) = 0$
$\tan x = 0$
$x = 0 , \pi , 2 \pi , 3 \pi , \ldots .$
$\tan x + 1 = 0$
$\tan x = - 1$
$x ... | HuggingFaceTB/finemath | |
Lecture+09+Notes+Exam02+Review (1)
Lecture+09+Notes+Exam02+Review (1) - 1 14:440:127...
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# The angles of a t
Let a - d, a, a + d be the three angles of the triangle that form AP.
Given that the greatest angle is double the least.
Now, a + d = 2(a - d)
2a - 2d = a + d
a = 3d ……(1)
Now by angle sum property,
(a - d) + a + (a + d) = 180°
3a = 180°
a = 60° …… (2)
from (1) and (2),
3d = 60°
d = 20°
Now, the an... | HuggingFaceTB/finemath | |
Enter the total volume in cubic feet and enter the density into the calculator to determine the total tons of material. This calculator can also determine the volume or density if the other variables are known.
## Cubic Feet To Tons Formula
The following formula is used to calculate the tons of material from cubic fe... | HuggingFaceTB/finemath | |
# How to prove twin prime conjecture or Goldbach conjecture if we assume prime distribution is completely random?
How to prove twin prime conjecture or Goldbach conjecture if we assume prime distribution is completely random ?
If we assume that prime number distribution is COMPLETELY random (subject to 1/log(x) restr... | HuggingFaceTB/finemath | |
## Intermediate Algebra (6th Edition)
We are given the graph for $y=f(x)=5x$. We can plug in x=0, to find the y-intercept of the equation. $f(0)=5\times0=0$. Therefore, the y-intercept of $f(x)=5x$ is 0. For $f(x)=5x+3$, the y-intercept is $f(0)=5\times0+3=3$. Graph B, shows that the line crosses the y-axis at (0,3) a... | HuggingFaceTB/finemath | |
Understanding Series: Functions
Or when you draw potatoes to understand the maths behind ML.
# Functions
You might remember functions from your high school courses. What you saw at this time was actually a very very tiny fraction of the actual world of functions. Indeed, when we say functions, the first thing that c... | HuggingFaceTB/finemath | |
# Stratified sampling essay
The type of drinks sold is an example of a nominally scaled variable as there are no rankings involved between the drinks. For example, each type of drink is equal. Question 1. 2 U. S. Businesses are listed by size: small, medium, and large. Explain why business size is an example of an ord... | HuggingFaceTB/finemath | |
Checkout JEE MAINS 2022 Question Paper Analysis : Checkout JEE MAINS 2022 Question Paper Analysis :
# Factor Theorem
In mathematics, factor theorem is used when factoring the polynomials completely. It is a theorem that links factors and zeros of the polynomial.
According to factor theorem, if f(x) is a polynomial ... | HuggingFaceTB/finemath | |
SEARCH HOME Math Central Quandaries & Queries Question from Tamara: 3 yards 6 inches × 7 Hi Tamara,
Approach 1:
One yard is 36 inches so 3 yards 6 inches is $3\times 36 + 6$ inches. Multiply this number by 7 to obtain the number of inches in 3 yards 6 inches. Now divide by 36 to obtain the number of yards, and th... | HuggingFaceTB/finemath | |
# How are the perimeters and areas of similar figures related?
## How are the perimeters and areas of similar figures related?
ratio of their perimeters is equal to the ratio of their corresponding side lengths. the ratio of their areas is equal to the square of the ratio of their corresponding side lengths.
### Wha... | HuggingFaceTB/finemath | |
# Double Bar Graphs Worksheets
• ###### Lunch Vote
These types of worksheets are helpful for students to learn how to compare two sets of data visually and effectively. These worksheets present two sets of data on the same graph, with each set represented by bars of different colors or patterns. This visual compariso... | HuggingFaceTB/finemath | |
## Algebra
Showing posts with label logarithm. Show all posts
Showing posts with label logarithm. Show all posts
### Properties of the Logarithm
The following properties of the logarithm are derived from the rules of exponents.
The properties that follow below are derived from the fact that the logarithm is defined... | HuggingFaceTB/finemath | |
Home | | Business Maths 11th std | Example Problems for Annuities
# Example Problems for Annuities
Example Problems and Questions for Annuities
Example 7.1
A person pays 64,000 per annum for 12 years at the rate of 10% per year. Find the annuity [(1.1)12=3.3184]
Solution : Example 7.2
What amount should be deposi... | HuggingFaceTB/finemath | |
Exam2MA262fall2011
# Solution first we need to find c 1 c 2 and c 3 such
• Notes
• 5
This preview shows page 5 out of 5 pages.
Solution. First we need to find c 1 , c 2 and c 3 such that x 2 + x +1 = c 1 ( x 2 - 1)+ c 2 (2 x +3)+ c 3 ( x 2 - 2 x ) = ( c 1 + c 3 ) x 2 +(2 c 2 - 2 c 3 ) x +3 c 2 - c 1 . Then we have ... | HuggingFaceTB/finemath | |
# Is the radical of a homogeneous ideal of a graded ring homogeneous?
Let $S = \sum_{n \in \mathbb{Z}} S_n$ be a commutative graded ring. Let $I$ be a homogeneous ideal of $S$. Let $J$ be the radical of $I$, i.e. $J = \{x \in S| x^n \in I$ for some $n > 0\}$. Is $J$ a homogeneous ideal?
-
possible duplicate of the ra... | open-web-math/open-web-math | |
# Introducing Zero
This is my last official post on Gattegno Textbook 1 which you can get free here. I'm sure we will be back and forth, but my 2 year series has come to a close with the introduction of zero. I'll be doing a little bit of clean up at the end of the post.
Since I had introduced zero to P. ages ago, we... | HuggingFaceTB/finemath | |
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# Confidence and prediction intervals
Obtain a 95% CI for o^2.
Please see attached.
#### Solution Preview
a) for the sample, N = 20 and df = 19
then the two tailed 90% t value with df 19 is t = 1.729
the mean = (19.170 + 21.138) / 2 = 20.154
then standard error is
SE = (21.138 - 20.154) /1.... | HuggingFaceTB/finemath | |
# Evaluate the following integrals:
Question:
Evaluate the following integrals:
$\int \frac{1}{\sqrt{x}+x} d x$
Solution:
$x=t^{2}$
$d(x)=2 t \cdot d t$
$d x=2 t \cdot d t$
Substituting $t$ and dt we get
$\Rightarrow \int \frac{2 t \cdot d t}{t^{2}+t}$
$\Rightarrow 2 \int \frac{t \cdot d t}{t^{2}+t}$
$\Right... | HuggingFaceTB/finemath | |
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# statistics
An 8th grade history teached studied the statistics for her mid-term exam. The average grade for the mid-term was 84 points, and the standard deviation was 8 points. The Z-score for a student who scores 90 on the exam is:
84-90/8= -0.75
1. 0
2. 0
3. 17
1. You have the subtraction backwards
A score of 90... | HuggingFaceTB/finemath | |
# IBPS PO Mains 2018: Are You Prepared Enough For Quantitative Aptitude?
0
1323 IBPS PO Mains 2018: The Institute of Banking Personnel Selection (IBPS) will now conduct the final paper for IBPS PO Recruitment, i.e. IBPS PO Mains in a few days.
To help you in a better way, OnlineTyari experts have amalgamated essenti... | HuggingFaceTB/finemath | |
# 12+ Best How Many Games In A Set In Tennis
##### 12+ Best How Many Games In A Set In Tennis
12+ Best How Many Games In A Set In Tennis. In a typical set of tennis, a set is played up to six games. Similarly, how many games win a set in tennis?
A possible tiebreak may be played in case of a tie after 6 games in a s... | HuggingFaceTB/finemath | |
# Thread: Trig integral with x^2
1. ## Trig integral with x^2
I want to evaluate the following 2 integrals: $\displaystyle \frac{2}{a} \int_{\frac{-a}{4}}^{\frac{3a}{4}} x \sin^2 \left[\frac{n\pi}{a} \left(x + \frac{a}{4}\right) \right] \, dx = \frac{a}{4}$
I think this is correct.
But $\displaystyle x^2$ is more d... | HuggingFaceTB/finemath | |
# Number Patterns – Definition With Example
“Memorize the multiplication tables from 1 to 10. I shall ask questions tomorrow,” the math teacher announced. Anya was relieved because she already knew the multiplication tables.
She began writing them down in her notepad after brushing up on her tables. Suddenly, Anya no... | HuggingFaceTB/finemath | |
# Interconversion of Fraction and Decimal
## Notes
### Inter-conversion of fractions and decimals:
#### 1) Fractions as decimals:
A fraction with denominator 10 can be represented using decimals.
Let us now try to find a decimal representation of 11/2.
11/2 = (11 xx 5)/(2 xx 5) = 55/10 = (50 + 5)/10 = 50/10 + 5/1... | HuggingFaceTB/finemath | |
# CBSE Class 10 Maths Term 1 Syllabus 2021-2022 (PDF)
CBSE Class 10 Maths Revised Syllabus for First Term of Academic Session 2021-2022 is available here for download in PDF. CBSE Class 10 Maths Term 1 and Term 2 Exams will be conducted according to this new rationalised syllabus only.
Created On: Sep 15, 2021 12:06 ... | HuggingFaceTB/finemath | |
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PartIISec5_9
# PartIISec5_9 - Game Theory Solutions to Exercises The...
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Game Theory Solutions to Exercises: The Extensive Form of a Game Jan-Jaap Oosterwijk Fall 2007
This preview has intentionally... | HuggingFaceTB/finemath | |
# Bisect a given line segment AB
### Geometric Construction with the Compass Alone ## Solution
Construct a point C such that AC = 2·AB (Problem #1). Swing an arc of radius CA with center C. This will intersect the circle of radius AB centered at A at points D and E. Draw two arcs of radii DA and EA (which are both eq... | HuggingFaceTB/finemath | |
<<
: Construction of a Planetary for 3rd- 5th Grade Math Learning Goals Practice measurement by creating a timeline to illustrate the of . Assess the lengths of different periods. Apply knowledge about the conversion of centimeters to meters. Compare different lengths representing different periods of time. Ma... | HuggingFaceTB/finemath | |
# Math
Mark leaves the house for school walking at the rate of 4 km. per hour. Two hours later Kris follows Mark at a walking rate of 6 km. per hour. How long will Kris have to walk to overtake Mark?
1. 0
2. 3
1. Their corresponding distances travelled is the same.
let the time taken by Kris be x hours
then time tak... | HuggingFaceTB/finemath | |
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Calculus Calculus Math Forum
September 4th, 2015, 04:35 AM #1 Senior Member Joined: Oct 2014 From: Complex Field Posts: 119 Thanks: 4 Transformation question Hello, If v=x-2y and u=2x-y, to what line will x=y transform in the u,v plane? I don't understand how am I supposed to find ... | HuggingFaceTB/finemath | |
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Expert-verified Found in: Page 639 ### Introductory Statistics
Book edition OER 2018
Author(s) Barbara Illowsky, Susan Dean
Page... | HuggingFaceTB/finemath | |
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# Multiplying Decimals - PowerPoint PPT Presentation
Multiplying Decimals. What happened to my line?!?!?!?!??!. Multiplying Fractions:. Is the product ALWAYS smaller than the fractions (factors)? Meaning, is this true for all fractions?. Mult... | HuggingFaceTB/finemath | |
PDA
View Full Version : [Math] Calculating Dice for Success Tests
Oracle_Hunter
2010-02-21, 07:19 PM
Assuming the following
S = total number of successes needed
d = total number of dice rolled
P(success on a die roll) = 0.33
How would you calculate the number of dice you need to roll to roll S successes with proba... | HuggingFaceTB/finemath | |
# SOLUTION: When driving and automobile to work you would think that half the turns would be right hand turns. When conducting a hypothesis test, out of 25 total turns on my route to work I f
Algebra -> Algebra -> Probability-and-statistics -> SOLUTION: When driving and automobile to work you would think that half t... | HuggingFaceTB/finemath | |
# How can you stop it from descending without friction?
The particular situation is below:
"For the system shown in the attached image, find the force required to prevent the mass m2 from descending. Use the values of m1 = 5.25 kg, m2 = 6.50 kg and m3 = 2.500 kg. Assume that all surface are frictionless and that the ... | HuggingFaceTB/finemath | |
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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A036969 Triangle read by rows: T(n,k) = T(n-1,k-1) + k^2*T(n-1,k), 1 < k <= n, T(n,1) = 1. 13
%I
%S 1,1,1,1,5,1,1,21,14,1,1,85,147,30... | HuggingFaceTB/finemath | |
Solutions by everydaycalculation.com
## What is the GCF of 7350 and 840?
The gcf of 7350 and 840 is 210.
#### Steps to find GCF
1. Find the prime factorization of 7350
7350 = 2 × 3 × 5 × 5 × 7 × 7
2. Find the prime factorization of 840
840 = 2 × 2 × 2 × 3 × 5 × 7
3. To find the gcf, multiply all the prime factors c... | HuggingFaceTB/finemath | |
# dnorm in R: How to Use dnorm() Function in R
The dnorm() function gives the density. The pnorm() function gives the distribution function. The qnorm() function gives the quantile function. The rnorm() function generates random deviates.
## dnorm in R
The dnorm() is a built-in R function which is the density functi... | HuggingFaceTB/finemath | |
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IIT-JEE NEET CBSE NCERT Q&A
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# NCERT Solutions for Class 12 Physics Chapter 5 – Magnetism And Matter
NCERT Solutions for Class 12 Physics Chapter 5 – Magnetism and Matter have been formulated to make sure that all your needs for exam preparation are met. These NCERT Solutions cover all the main conce... | HuggingFaceTB/finemath | |
Game Development Reference
In-Depth Information
This produces a vector orthogonal to both a and b . The magnitude of the cross
product is
sin θ,
where θ is the angle between a and b . The direction of the cross product is
determined by the right-hand rule: taking your right hand, point the first finger in
the direction... | HuggingFaceTB/finemath | |
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order. Distributive Property. Note: Not all browsers show the +1 button. Question 1 . Put the 3 and the 4 in parenthesis? Once again, subtraction and division are not associative. the associative property is not at work because they did not change the associations. (i) a + (b + c) = (a + b) + c (Associativ... | open-web-math/open-web-math | |
# Overview - Mathematics Advanced Year 12
## Available Class Times
##### 10:30amSunday
HSC Mathematics is either recommended or mandatory knowledge for many STEM degrees. It teaches the Calculus knowledge that is essential to further study in these fields. As such an important foundation, it is absolutely crucial t... | HuggingFaceTB/finemath | |
Cody
# Problem 520. Choose the best fitting dominoes
Solution 1235145
Submitted on 20 Jul 2017 by Augusto Mazzei
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.
### Test Suite
Test Status Code Input and Output
1 Pass
list = {[1 5; 2 3; 2 2; 3 4; 0 3], [... | HuggingFaceTB/finemath | |
God’s Number
God had been a puzzle recreational mathematicians and speed cubers have been trying to solve ever since the discovery of Rubik’s Cube. In God’s algorithm, God’s number is 26 in the quarter turn metric (QTM) and 20 in the half turn metric (face turn metric), which means that the minimum number of turns req... | HuggingFaceTB/finemath | |
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M137.F08.assmt5
# M137.F08.assmt5 - Math 137 ASSIGNMENT 5 Fall 2008 Submit...
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View Full Document
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3. Force diagrams or generalized coordinates? Typically you are taught in high school that in order to solve problems with interacting bodies you need to draw force diagrams, and write down the force balance equations (based on Newton II law) for x and y components (for three-dimensional problems, also the z-component)... | open-web-math/open-web-math | |
# Thread: Intersection of orthogonal planes
1. ## Intersection of orthogonal planes
Hello, I have been trying to tackle vectors over the weekend, but cant seem to get this one right. I have two lines, s(1,2,1) and (9,6,0) + t(0,1,-1). The orthogonal vector is v(-3,1,1) found using cross product. How can i find the eq... | HuggingFaceTB/finemath | |
# Definition:Homogeneous Linear Equations
## Definition
A system of homogeneous linear equations is a set of simultaneous linear equations:
$\ds \forall i \in \closedint 1 m: \sum_{j \mathop = 1}^n \alpha_{i j} x_j = \beta_i$
such that all the $\beta_i$ are equal to zero:
$\ds \forall i \in \closedint 1 m : \sum_{... | HuggingFaceTB/finemath | |
# Inductive Reasoning
Instructions:
• Answer 24 questions in 15 minutes.
• If you are not ready to take this test, you can study here.
• Match each statement with the correct term.
• Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong ... | HuggingFaceTB/finemath | |
# Angle Aod Has What Measurement According to the Protractor
EstateName.com – Angle Aod Has What Measurement According to the Protractor
Construction of angles
is one of the essential part of geometry. An angle is a shape formed by two rays (called arms of angle) that shares a common point (called vertex). We can use... | HuggingFaceTB/finemath | |
In this video, we are going to divide polynomials. After you finish this lesson, view all of our Algebra 1 lessons and practice problems.
For example: $\frac{x^2+5x+4}{x+1}$
Factor polynomials if necessary $\frac{(x+4)(x+1)}{x+1}$
Divide like terms $\frac{(x+4)}{1}$
So we have ${x+4}$ Video-Lesson Transcript
Let’s... | HuggingFaceTB/finemath | |
0
# one pipe can fill a tank in 5 hours. another can empty the tank in 8 hours. If both pipes are left open, how long will it take to fill the tank??
### 1 Answer by Expert Tutors
Philip P. | Effective and Affordable Math TutorEffective and Affordable Math Tutor
5.0 5.0 (428 lesson ratings) (428)
0
Let V =the volume... | HuggingFaceTB/finemath | |
# Question on Taylor Polynomials
Using the Taylor polynomial $P_{3}(x)$ of $e^x$, find a Taylor polynomial $P_{8}(x)$ for $x^{2}e^{-x^{2}}$. Use that to estimate the following integral: $$\int_{0}^{1}x^{2}e^{-x^{2}}dx.$$
• Where are you stuck? Just take $P_3(x)$ and plug in $-x^2$ for $x$ and then raise all powers of... | HuggingFaceTB/finemath | |
# Very tricky integral
1. Aug 17, 2009
### mvillagra
Hi, can someone give me a hand with this "little" integral please.
$$\int (\cos{k})^{t-s+1}(b-a\sin^2k)^{s/2}e^{-ik(n-1)}dk$$
where
t is the time, which is discrete
s is between 0 and t
k has domain [-pi, pi]
n is a natural number
a, b are complex constants
act... | HuggingFaceTB/finemath | |
# How to approximate pi out of random numbers
I know, I waste far to much of my time on youtube watching random videos. But out of luck I sometimes find inspiring stuff. Like this video by standupmaths:
And so I got on the journey to waist even more of my time.
### How does it work?
The system of the approximation ... | HuggingFaceTB/finemath | |
# Divide Rational Expressions
How to divide rational expressions: 2 examples and their solutions.
## Example 1
### Solution
To solve the division sign [ ÷ ],
change [ ÷ ] to [ ⋅ ],
and switch the numerator and the denominator
of the fraction right behind [ ÷ ]:
(x + 7)/2x → 2x/(x + 7).
x⋅2x = 2x2
(3x - 1)⋅(x + ... | HuggingFaceTB/finemath | |
We have to move one matchstick puzzles with answers, move 2 matchstick puzzles, 100+ matchstick equation puzzles, and matchstick puzzles for adults. These matchstick number puzzles will improve your spatial thinking and logical ability.
#### Move 4 matchsticks to create 3 squares.
###### 47.Matchstick Puzzles
`Move 4... | HuggingFaceTB/finemath | |
# A variation on a classic problem
Most number theorists will be familiar with the result conjectured in the 19th century and proved in the 20th century that the only square pyramidal numbers that are square numbers are 1 and 4900 (the sum of the squares from 1^2 to 24^2 = 70^2).
While discussing this, it was pointed... | HuggingFaceTB/finemath | |
# Progressions, Sequences and Series Questions for CAT PDF
0
5457
Progressions, Sequences and Series for CAT PDF consists of important questions on progressions for CAT. Every year 3-5 questions will be asked from this sequences and series topic.
Here we are giving some important questions to practice on this topic.... | HuggingFaceTB/finemath | |
# How to Calculate Shaft Taper ••• propeller image by John Sandoy from Fotolia.com
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Shafts are universal components of machines with rotating parts. In a standard automobile, each axle connecting the front and rear wheels is a shaft around which the wheel sets rotate while the car is in motion.
These types of sh... | HuggingFaceTB/finemath | |
# find the exact area of the surface by rotating curve about the x-axis. y=x^3/3+1/(4x), 1/2 < or equal to x < or equal to 1 please be thorough
sciencesolve | Certified Educator
You should remember the area formula for a surface generated by rotating the curve f(x) around x axis such that:
`A = 2pi*int_a^b f(x)*sqrt... | HuggingFaceTB/finemath | |
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## A question on the sum of element orders of a finite group
Let G be a nontrivial finite group. Is it true that the sum of the orders of all elements of G is not di... | HuggingFaceTB/finemath | |
# Lower bound on probability of sum of random variables
Suppose that the random variables $X_i, i = 1,2,\ldots,n$ are i.i.d. Suppose $0 \leq X_i \leq 4n^2$ with probability 1 for all $i$. Suppose that $\mathbb{E}(X_i) \geq n$ for all $i$. Show that $$\mathbb{P}(X_1 + X_2 + \cdots + X_n \geq n^2/2) \geq \frac{1}{20}.$$... | HuggingFaceTB/finemath | |
HomeEnglishClass 12MathsChapterHeart Of Algebra
The gas mileage for Jan's car ...
# The gas mileage for Jan's car is 28 miles per gallon when the car travels at an average speed of 55 miles per hour. The car's gas tank has 20 gallons of gas at the beginning of a trip. If Jan drives at an average speed of 55 mile... | HuggingFaceTB/finemath | |
# Sides AB and AC and median AD of a triangle ABC are respectively proportional to sides PQ and PR and median PM of another triangle PQR. Show that $$\triangle$$ ABC ~ $$\triangle$$ PQR.
## Solution :
Given : $$\triangle$$ ABC and $$\triangle$$ PQR in which AD and PM are the medians, such that
$$AB\over PQ$$ = $$BC\... | HuggingFaceTB/finemath | |
The University of New South Wales
Final Exam
Session 2, 2014
COMP9020
Foundations of Computer Science
Time allowed: 2 hours
Total number of questions: 10
Maximum number of marks: 50
Not all questions are worth the same.
Textbooks, lecture notes, etc. are not permitted, except for up to 2 double-sided
A4 sheets containi... | HuggingFaceTB/finemath | |
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# Energy and Power
#### Introduction
One of the most important concepts to understand when sizing a system or figuring out how much your panel produces is Energy and Power. Below you will be able to find a description about each along with some examples.
#### Power... | HuggingFaceTB/finemath | |
Chapter 2 Linear Equations and Inequalities in One Variable 2.1 Check Points 4. 8 y 7 7 y 10 6 4 1.
x 5 12 x 5 5 12 5 x 0 17 x 17
y 3 10 y 3 3 10 3 y 13 Check:
Check: x 5 12 17 5 12 12 12 The solution set is 17. 2.
z 2.8 5.09 z 2.8 2.8 5.09 2.8 z 0 2.29 z 2.29 Check: z 2.8 5.09 2.29 2.8 5.09 5.09 5.09 The solution ... | HuggingFaceTB/finemath | |
Question
# You know you will need \$25,000 at the end of 5 years. How much would you...
You know you will need \$25,000 at the end of 5 years. How much would you have to deposit annually, starting at the end of the first year, into an account earning 10% to accumulate the needed amount?
\$3,980
\$4,095
\$4,435
\$... | HuggingFaceTB/finemath | |
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Midterm_Solutions_Summer2004
Midterm_Solutions_Summer2004 - Midterm Solution 1 a Since...
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Midterm Solution : 1 a) Since we choose the different days on which TSE went up and down, we should use two-... | HuggingFaceTB/finemath | |
# Tag Archives: thermodynamics
## Prettying Up the 3D Graph Output
Here I’ve prettied the graph up so the lines change color every 100 degrees F, and I’ve added a legend. I suppose I could choose consecutive colors with a bit more contrast.
## Graphing the Matrix Output
Here I continually run the heating routine fo... | HuggingFaceTB/finemath | |
# Colorful Numbers
Objective: Given a number, find out whether its colorful or not.
Colorful Number: When in a given number, product of every digit of a sub-sequence are different. That number is called Colorful Number. See Example
Example:
```Given Number : 3245
```
Output : Colorful
```Number 3245 can be broken... | HuggingFaceTB/finemath | |
July 13th, 2015
Students will create complex visual models of sums of fractions. These puzzled images will encourage students to use fraction-language to describe each other’s creations and to think about the order of operations that are needed to solve their classmates’ fraction puzzles.
### Fraction Mash Activi... | HuggingFaceTB/finemath | |
• Hamilton's Flexible Maths Blocks Explained
Open our sample 'Year 5 Autumn Unit 1' to find out how the blocks of units work.
• Go Deeper with Maths Investigations
Our Investigations provide the materials to confidently teach problem solving & investigation skills.
• Free Maths Resources on Hamilton
Find out which... | HuggingFaceTB/finemath | |
# Reasoning Ability Questions for IBPS RRB Prelims: 2nd July 2018
Dear Aspirants,
Reasoning Questions for IBPS RRB 2018
Reasoning Ability is an onerous section. With the increasing complexity of questions, it becomes hard for one to give it the cold shoulder. The only way to make the grade in this particular section ... | HuggingFaceTB/finemath | |
# Plus–minus sign
±
Plus–minus sign
In UnicodeU+00B1 ± PLUS-MINUS SIGN (±, ±, ±)
Related
The plus–minus sign, ±, is a mathematical symbol with multiple meanings.
## History
A version of the sign, including also the French word ou ("or"), was used in its mathematical meaning by Albert Girard in 1... | HuggingFaceTB/finemath | |
Calculators: Power Supply Hold-up Time
Back to Calculator Index
Often, you need to calculate that a power supply will remain operating for a required period of time. In the mean time, allowing, say, the microcontroller to perform cleanup functions before being rudely interrupted. Some equipment requires being able to... | HuggingFaceTB/finemath | |
# What is the distance between (3, 4, 1) and (3, 6, 2) ?
$\sqrt{5}$
Distance between 2 points $\left(x 1 , y 1 , z 1\right) \mathmr{and} \left(x 2 , y 2 , z 2\right)$ = $\sqrt{{\left(x 2 - x 1\right)}^{2} + {\left(y 2 - y 1\right)}^{2} + {\left(z 2 - z 1\right)}^{2}}$
So distance between (3,4,1) and (3,6,2) =$\sqrt{{... | HuggingFaceTB/finemath | |
### Фй лЭне пй чсЮуфет -Уэнфбоз ксйфйкЮт
Ден енфпрЯубме ксйфйкЭт уфйт ухнЮиейт фпрпиеуЯет.
### Ресйечьменб
Numeration and Notation 1 Simple Subtraction 11 Simple Multiplication 18 Simple Division 25 Averages 33 Weights and Measures 57
Measures of Extent 74 Common Measures 100 Decimal Fractions 117 Practice 132 Exa... | HuggingFaceTB/finemath | |
# Medical Amount of energy, roughly, needed to kill with blunt force trauma
1. Dec 28, 2016
### Jake Sparre
Basically, I have been trying to solve my own fictional equation of the amount of weight/mass needed to be dangerous or lethal from roughly 400 feet in the air. I have tried multiple equations and what not to ... | HuggingFaceTB/finemath | |
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Let A=[{:(1,-2),(5," "4),(3," ...
# Let A=[{:(1,-2),(5," "4),(3," "0):}],B=[{:(" "3," "1),(" "0," "2),(-3," "5):}]" and "C=[{:(" "4," "3),(-2," "2),(" "1," "6):}]. <br> Verify that (A+B)+C=A+(B+C).
Step by step solution by experts to help you in dou... | HuggingFaceTB/finemath | |
# 39% of 1020000
What is 39 percent of 1020000? What is 1020000 plus 39% and 1020000 minus 39%?
39% of 1020000 = 397800 1020000 + 39% = 1417800 1020000 − 39% = 622200
Calculate online:
% of
Percent formula to figure out percentages:
1020000 ⋅ 39 ÷ 100 = 397800.
So, we got a discount percentage of 397800. If the... | HuggingFaceTB/finemath | |
Are you looking for DAV Maths Solutions for class 8 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further updates!! All the Best !!
Unit 14 Worksheet 1 ... | HuggingFaceTB/finemath |
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