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### Course: Grade 7 math (FL B.E.S.T.)>Unit 8
Lesson 3: Measures of center
# Statistics intro: Me... | HuggingFaceTB/finemath | |
# Tag Info
## Hot answers tagged angular-momentum
6
Basically the rings don't fall into Saturn for the same reason the Moon doesn't fall into the earth. The rings are billions of little moons, each in it's own stable, or largely stable orbit. The rings are also likely resupplied with new ring material from Enseladus... | open-web-math/open-web-math | |
# [LeetCode] #1# Two Sum : 数组/哈希表/二分查找/双指针
1. Two Sum
Total Accepted: 241484 Total Submissions: 1005339 Difficulty: Easy
Given an array of integers, return indices of the two numbers such that they add up to a specific target.
You may assume that each input would have exactly one solution.
Example:
Given nums = [2... | HuggingFaceTB/finemath | |
### Home > CC3 > Chapter 8 > Lesson 8.2.2 > Problem8-71
8-71.
Use $<$, $>$, or $=$ to compare the number pairs below.
1. $0.183 \text{____} 0.18$
Notice that $0.18$ can also be looked at as $0.180$. This may make the numbers easier to compare.
$>$
1. $−13\text{____} −17$
Although $17$ is a larger number, since... | HuggingFaceTB/finemath | |
# Superposition of two plane waves
• ballzac
#### ballzac
Hi,
I'm not after much help here. I already have an answer, but I want to make sure that I haven't made any stupid mistakes and that I understand the question. I also have a query about the second part of the question.
## Homework Statement
What is the prob... | HuggingFaceTB/finemath | |
# math
posted by .
The width of a rectangular prism is w centimeters. The height is 2 centimers less than the width. The length is 4 centimeters more than the width. If the volume of the prism is 8 times the measure of the length, find the dimensioon of the prism.
• math -
V = Lwh
w = width
w - 2 = height
w + 4 = l... | HuggingFaceTB/finemath | |
# Ideal of a Polynomial ring $R$ which is not principal.
Let $R$ be the ring given by $R=\mathbb Z+x\mathbb Q[x]$. Then show that:
1) $R$ is an integral domain and its units are $+1$ and $-1$.
2) $x$ is not prime in $R$ and describe the quotient ring $R/(x)$.
3) Compute an ideal of $R$ which is not principal.
$R$ ... | HuggingFaceTB/finemath | |
It is currently 22 Jun 2017, 10:16
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Discrete Mathematics with Graph Theory (3rd Edition) 89
# Discrete Mathematics with Graph Theory (3rd Edition) 89 -...
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Section 4.3 87 (a) [BB] We have a 2 = p201. r2 with gcd(p, r2) = 1 and b = rf3 s. ... | HuggingFaceTB/finemath | |
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# Verify whether the following sequences are G.P. If so, write tn : 5,15,155,1255, ... - Mathematics and Statistics
Sum
Verify whether the following sequence is G.P. If so, write tn:
sqrt(5), 1/sqrt(5), 1/(5sqrt(5)), 1/(25sqrt(5)), ...
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#### Solution
sqrt(... | HuggingFaceTB/finemath | |
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# RD Sharma Class 10 and Chapter Circles Maths Solutions
## Maths Class 10 and Chapter Circles RD Sharma Solutions Filter
Filters :
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### RD SHARMA Class 10 | CIRCLES
If radii of the two concentric circles are ... | HuggingFaceTB/finemath | |
Article | Open | Published:
Block copolymer derived uniform mesopores enable ultrafast electron and ion transport at high mass loadings
Abstract
High mass loading and fast charge transport are two crucial but often mutually exclusive characteristics of pseudocapacitors. On conventional carbon supports, high mass loa... | open-web-math/open-web-math | |
Length of a Curve
Formula of Length of a Curve
For a function $f$ that is continuous on the $[a,b]$, the length of the curve $y = f(x)$ from $a$ to $b$ is given by [1] [2] [3] $\int_{a}^{b} \; \sqrt{1+\left( \dfrac{df}{dx} \right)^2 }\; dx$
Examples and Solutions
Example 1
Find the length of the arc of the par... | open-web-math/open-web-math | |
# How to prove that a series expansion of pi has converged to a certain accuracy?
Wikipedia has a great article on methods for calculating pi with arbitrary precision, using for example Machin's infinite series expansion:
$\frac{\pi}{ 4} = 4$ arccot $5 -$arccot $239$
where
arccot $x = \frac{1}{x} - \frac{1}{3 x^3} ... | HuggingFaceTB/finemath | |
1. ## The code
Lol I was expecting something more explicit with all the trouble I had but I was wrong. Still awesome. Not sure if I should post this though seems like I'm defeating the purpose...
http://www.itchstudios.com/psg/main.php?id=misc
5, 12, 17, 29, 46, ?
Solution
5+12=17
12+17=29
17+29=46
29+46=75
...fol... | HuggingFaceTB/finemath | |
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Check if four segments form a rectangle
• Difficulty Level : Medium
• Last Updated : 04 Oct, 2018
We are given four segments as a pair of coordinates of their end points. We need to tell whether those four line segments make a rectangle or not.
Examples:
```Input : segments[] = [(4, 2), (7, 5),
(2, ... | HuggingFaceTB/finemath | |
# Math
what is 2/5 divided by 15/7?
1. 👍
2. 👎
3. 👁
1. (2/5) / (15/7)
(2/5) * (7/15) = 14/75
1. 👍
2. 👎
👤
Ms. Sue
## Similar Questions
1. ### Math
1/4 divided by 3/8 (write in simplest form) -------------------------------------- 1/3 divided by 5/6 (simplest form) --------------------------------------- 1 3/4... | HuggingFaceTB/finemath | |
## Solve Lesson 55 Page 63 SBT Math 10 – Kite>
Topic
Uncle Nam plans to make a rectangular picture frame so that the inner part of the frame is a rectangle with dimensions of 6 cm x 11 cm, the width of the border is $$x$$ cm (Figure 27). The area of the frame border should not exceed $$38c{m^2}$$. What is the width... | HuggingFaceTB/finemath | |
MOSEK can solve quadratic and quadratically constrained problems, as long as they are convex. This class of problems can be formulated as follows:
(6.2)$\begin{split}\begin{array}{lrcccll} \mbox{minimize} & & & \half x^T Q^o x + c^T x + c^f & & & \\ \mbox{subject to} & l_k^c & \leq & \half x^T Q^k x + \sum_{j=0}^{n-1}... | HuggingFaceTB/finemath | |
# Continuity (ii)
• Dec 13th 2009, 05:21 AM
nameck
Continuity (ii)
f(x) = { [(e^x) - 1] / x ; if x not equal 0
...... .{ b ...................; if x = 0
What value of b makes f continuous at x = 0?
so.. the left side and right side must be equal in order to make
f continuous at x = 0
[(e^x) - 1] / x = b
[(e^x) - 1]... | HuggingFaceTB/finemath | |
# Chi-square test with summary data in jamovi
Suppose you want to do a chi-square test for independence in jamovi, but you only have summary data. Fortunately it is super easy to do that in jamovi. Here is how.
This example is based on a question from an assignment I use in my Applied Statistics course (the assignme... | HuggingFaceTB/finemath | |
# Gain of a negative feedback circuit (problem)
I am asked to find the gain A for this negative feedback circuit below:
(A: gain, G: all of the gain of the circuit, F: return ratio)
The simplified circuit above shows the gain A that I am trying to find.
I know that if this circuit had only one FET A = Vo/Vi=-gm*Rl.... | HuggingFaceTB/finemath | |
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Every Question Helps You Learn
The angles of a triangle total 180o.
# Position 2
This Math quiz is called 'Position 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th... | HuggingFaceTB/finemath | |
# Optimal tax rate
Suppose you have two countries A and B, with a tax rate $T_A$ and $T_B$, respectively. The tax is redistributed to all people equally. Hence if you live in A and you make $I$ as income then you will finally receive
$$I*(1-T_A) + \overline{I}*T_A$$ where $\overline{I}$ is the average income in $A$. T... | HuggingFaceTB/finemath | |
# 42.1 kg to lbs - 42.1 kilograms to pounds
Do you want to learn how much is 42.1 kg equal to lbs and how to convert 42.1 kg to lbs? You are in the right place. This whole article is dedicated to kilogram to pound conversion - both theoretical and practical. It is also needed/We also want to underline that whole this ... | HuggingFaceTB/finemath | |
# Inequalities
## Inequalities
Solving Inequalities
An inequality is the result of replacing the = sign in an equation with , ≤, or ≥. For
example, 3x – 2 < 7 is a linear inequality. We call it “linear” because if the < were
replaced with an = sign, it would be a linear equation. Inequalities involving polynomials
of... | HuggingFaceTB/finemath | |
Q. 14 B4.7( 7 Votes )
# Find the equations of the tangent and normal to the given curves at the indicated points:y = x4 – 6x3 + 13x2– 10x + 5 at (1, 3)
It is given that equation of curve is y = y = x4 – 6x3 + 13x2– 10x + 5
On differentiating with respect to x, we get
= 4x3 - 18x2 +26x - 10
Therefore, the slope of ... | HuggingFaceTB/finemath | |
# Maximum set packing and minimum set cover duality
I read that the maximum set packing and the minimum set cover problems are dual of each other when formulated as linear programming problems. By the strong duality theorem, the optimal solution to the primal and dual LP problems should have the same value.
However, ... | HuggingFaceTB/finemath | |
# Sets in Python
Perhaps you recall learning about sets and set theory at some point in your mathematical education. Maybe you even remember Venn diagrams: If this doesn’t ring a bell, don’t worry! This tutorial should still be easily accessible for you.
In mathematics, a rigorous definition of a set can be abstract ... | HuggingFaceTB/finemath | |
# Dijkstra’s Shortest Path Algorithm
## Theory of Computation
The shortest path between u and v is denoted $\delta(u,v)$, if there is no path, then $\delta(u,v)=\infty$
# Can a shortest path contain a cycle?
A directed cycle is:
• Positive: if its edge weights sum up to a positive number
• Negative: if its edge w... | HuggingFaceTB/finemath | |
【欧拉猜想】是否有无穷多个不可约分的正整数解
```a^3+b^3=c^3
a^4+b^4+c^4=d^4
a^5+b^5+c^5+d^5=e^5
……```
`27^5+ 84^5+ 110^5+ 133^5= 144^5`
``` @Test
fun test3() {
var list1 = arrayListOf<Pair<Long, String>>()
var list2 = arrayListOf<Pair<Long, String>>()
val start1 = System.currentTimeMillis()
// 假设： a<b<c<d, 肯定有： e > {a,b,c,d}
for (a i... | HuggingFaceTB/finemath | |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 14 Oct 2019, 23:43
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
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Legend of the Lo Shu (= story of turtle Lo Wi)
Hello I am Lowi, a five thousand year old turtle. I live in the river Lo (the yellow river) in China. Here’s my story!
When I was young (in the year 2800 before Christ) I was a servant of the river god. When the river god was angry the river would overflow. The people of... | HuggingFaceTB/finemath | |
1. ## Peicewise Functions Continuity
I am doing some review, starting back at the fundamentals and I do not know why but piecewise confuse the hell out of me at times. I have the following piecewise function and have to tell if it is continuous or not on the interval [-1,1]
$f(x)=\frac{x}{|x|} x not equal to 0$
$f(x... | HuggingFaceTB/finemath | |
# A cable of span l and central dip d is subjected to uniform load w per unit horizontal length. The horizontal component of tension in the cable is
Free Practice With Testbook Mock Tests
## Options:
1. $$\frac{{{\rm{w}}{{\rm{l}}^2}}}{{4{\rm{d}}}}$$
2. $$\frac{{{\rm{w}}{{\rm{l}}^2}}}{{8{\rm{d}}}}$$
3. $$\frac{{{\r... | HuggingFaceTB/finemath | |
# Surface area of triangular prism?
Surface Area Of A Triangular Prism Step by step lesson to find the triangular prism surface area Below are the steps explaining how to find the surface area of a ... - Read more
Surface Area of a Triangular Prism by Scott Giomini ... Solving for Surface Area of Retangular prisms, R... | HuggingFaceTB/finemath | |
# [SOLVED] 33b-counting problem-players and line up
• Sep 5th 2009, 08:24 PM
yvonnehr
[SOLVED] 33b-counting problem-players and line up
I don't understand how to do this or which formulas to use.
A little league team has 15 players.
How many ways are there to select 9 players for the starting lineup and a batting ord... | HuggingFaceTB/finemath | |
# How Many Days In 10 Years
How Many Days in 10 Years?
We’re all familiar with the fact that a year has 365 days, but did you know that 10 years comprises 3,650 days? That’s right. 10 years is equivalent to 3,650 days, providing you don’t take into account the leap years which occur every four years.
## What is... | HuggingFaceTB/finemath | |
Friday, August 6, 2021
CBSE 12th Maths Question Paper and Solutions of Board Exam 2020
Download previous year question papers and answer keys of CBSE Plus Two Maths examination held on March 17, 2020. All set question papers together with their answer keys / marking scheme/ solutions are avaialble for download from t... | HuggingFaceTB/finemath | |
CSC 161 Grinnell College Spring, 2010 Imperative Problem Solving and Data Structures
# Introduction to Loop Invariants
## Goals
This laboratory exercise introduces the concept of loop invariants and provides some practice in using loop invariants in developing programs.
## Approaches to Problem Solving
Problem: Re... | HuggingFaceTB/finemath | |
# Mistakes for Learning Core Competancies
In my mistakes for learning assignment, I got the opportunity to re-try a question in physics that I had previously gotten wrong. While I re did it I used my personal awareness to reflect on where mistakes were made and how I will grow from them. I got to use this learning opp... | HuggingFaceTB/finemath | |
# Celsius to Fahrenheit conversion.
Edit any of the fields below and get answer:
Celsius Fahrenheit =
How many degrees Fahrenheit in 36.6 degrees Celsius? How to convert 36.6 Celsius to Fahrenheit?
Use our Celsius to Fahrenheit converter to understand:
## What is the formula to convert 36.6 from °C to °F?
Celsius ... | HuggingFaceTB/finemath | |
# Radioactive substance has 10 ^8 nuclei, it`s half life is 30s the number of nuclei left after 15s is
5 years ago
Dear Student,
0.693/t1/2 = k
t1/2= half life
k=disintegration or rot consistent
=>0.693/30 = k
=>k=0.0231
k=2.303log(a/a-x)/t
a=initial sum
a-x= sum left after deterioration
t=time of rot
=>0.0231=2.303l... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Combinations similar to Ways of Summing Odd Numbers:
Filter by: Content type:
Stage:
Challenge level:
### There are 36 results
Broad Topics > Decision Mathematics and Combinatorics > Combinations
### Flagging
##### Stage: 3 Challenge Level:
How many tricolour flags ar... | HuggingFaceTB/finemath | |
$\newenvironment {prompt}{}{} \newcommand {\ungraded }[0]{} \newcommand {\HyperFirstAtBeginDocument }[0]{\AtBeginDocument }$
1 : Consider the function $f(x) = (\sage {p1f1}) + (\sage {p1f2}) + (\sage {p1f3}) + (\sage {p1f4})$. What are the maximum number of relative extrema that $f(x)$ could have? $\answer [id=c]{\sage... | HuggingFaceTB/finemath | |
# Logistic
Chapter 3.7: Logistic
The Logistic reliability growth model has an S-shaped curve and is given by Kececioglu :
$R = \frac{1}{1+be^{-kt}}, b \gt 0, k \gt 0, T \simeq 0$
where $b\,\!$ and $k\,\!$ are parameters. Similar to the analysis given for the Gompertz curve, the following may be concluded:
1. The ... | HuggingFaceTB/finemath | |
# How do you solve ln (2x-5) = 3.78?
Jan 18, 2016
I found: $x = \frac{{e}^{3.78} + 5}{2} = 24.41$
#### Explanation:
I would use the definition of log to change it into an exponential as:
$2 x - 5 = {e}^{3.78}$
Rearranging:
$2 x = {e}^{3.78} + 5$
And:
$x = \frac{{e}^{3.78} + 5}{2} = 24.41$ | HuggingFaceTB/finemath | |
# Factors of 278
Factors of 278 are 1, 2, 139, and 278
#### How to find factors of a number
1. Find factors of 278 using Division Method 2. Find factors of 278 using Prime Factorization 3. Find factors of 278 in Pairs 4. How can factors be defined? 5. Frequently asked questions 6. Examples of factors
#... | HuggingFaceTB/finemath | |
ENCYCLOPEDIA 4U .com
Web Encyclopedia4u.com
# Local ring
In abstract algebra, a local ring is a ring which has a unique maximal left ideal.
Some authors require that a local ring be (left and right) Noetherian, and the non-Noetherian rings are then called `quasi-local'. Wikipedia does not impose this requirement.
... | HuggingFaceTB/finemath | |
# RS Aggarwal Solutions for Class 7 Maths Chapter 11 Profit and Loss
RS Aggarwal Solutions for Class 7 Maths Chapter 11 – Profit and Loss are available here, so that students can check for the solutions whenever they are facing difficulty while solving the questions from RS Aggarwal Solutions for Class 7. These solut... | HuggingFaceTB/finemath | |
# After deriving a new coordinate via sequential linear transforms, how can I map translations back to the original coordinates?
I have a Bezier curve, defined with coordinates $P_1, P_2, P_3, P_4$ and apply a sequence of linear tranformations that turn these into $(0,0), (0,s), (s,s)$ and a fourth "free" coordinate (... | HuggingFaceTB/finemath | |
## Algebra 1
$p^{8}-18p^{4}q^{2}+81q^{4}$
$(p^{4}-9q^{2})^{2}$ Using the rule of $(a-b)^{2}$ = $a^{2}$-2ab+$b^{2}$ In this case, the a= $p^{4}$ and b= $-9q^{2}$ as substituting these gives us the original polynomial $a^{2}$-2ab+$b^{2}$ $(p^{4})^{2}-2(p^{4})(-9q^{2})+(-9q^{2})^{2}$ $p^{8}-18p^{4}q^{2}+81q^{4}$ | HuggingFaceTB/finemath | |
# proof of Rodrigues’ rotation formula
Let $[\mathbf{x},\mathbf{y},\mathbf{z}]$ be a frame of right-handed orthonormal vectors in $\mathbb{R}^{3}$, and let $\mathbf{v}=a\mathbf{x}+b\mathbf{y}+c\mathbf{z}$ (with $a,b,c\in\mathbb{R}$) be any vector to be rotated on the $\mathbf{z}$ axis, by an angle $\theta$ counter-clo... | open-web-math/open-web-math | |
Mixed Fraction A
Mixed Fraction B
A + B = 453/35
GENERATE WORK
## Mixed Numbers Addition - work with steps
Input Data :
Mixed Fraction A = 5 8/7
Mixed Fraction B = 6 4/5
Objective :
Find the sum of two given mixed numbers?
Solution :
5 8/7 + 5 8/7 = ?
Convert Mixed fraction into fration
5 8/7 = ((5\times7)+8)/7 =... | HuggingFaceTB/finemath | |
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## Class 10 (Foundation)
### Course: Class 10 (Foundation)>Unit 3
Lesson 2: Factorising polynomia... | HuggingFaceTB/finemath | |
# 11260 (number)
11,260 (eleven thousand two hundred sixty) is an even five-digits composite number following 11259 and preceding 11261. In scientific notation, it is written as 1.126 × 104. The sum of its digits is 10. It has a total of 4 prime factors and 12 positive divisors. There are 4,496 positive integers (up t... | HuggingFaceTB/finemath | |
# Search Printable Operations and Algebraic Thinking Subtraction Worksheets
152 filtered results
152 filtered results
Subtraction
Operations and Algebraic Thinking
Sort by
Let's Practice Subtraction! 1–5
Worksheet
Let's Practice Subtraction! 1–5
Preschoolers will count to subtract birds, bugs, eggs, and more in this p... | HuggingFaceTB/finemath | |
It is currently 23 Feb 2018, 00:18
### 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
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we will pick new questions that match your level based o... | HuggingFaceTB/finemath | |
# 3 Switches 3 Fans puzzle – Genius Logic puzzle for Interview
### Can you solve this genius logic puzzle ever? The Three switches new puzzle – Only for Genius with answer
The best logic and brain teasers puzzle asked in interviews. We always looking for genius level puzzles or interesting & logics puzzles, which giv... | HuggingFaceTB/finemath | |
# Factors and primes
In this lesson, we will be investigating factors, factor pairs and prime numbers.
# Video
Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:
• Click "Close Video"
• Click "Next" to view the activity
Your video will re-... | HuggingFaceTB/finemath | |
Third edition of Artificial Intelligence: foundations of computational agents, Cambridge University Press, 2023 is now available (including the full text).
## 4.2 Possible Worlds, Variables, and Constraints
To keep the formalism simple and general, we develop the notion of features without considering time explicitly... | HuggingFaceTB/finemath | |
For a given sequence \{a_n\} , a_p+a_q=a_{p+q} where p,q∈N^{*}. Prove a_n=2n when a_1=2.
#### Question
For a given sequence \{a_n\} , a_p+a_q=a_{p+q} where p,q∈N^{*}. Prove a_n=2n when a_1=2.
Collected in the board: Arithmetic sequence
Steven Zheng posted 6 months ago
Let p=1 and q=n
a_p+a_q=a_{p+q}
becomes
a... | HuggingFaceTB/finemath | |
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# Solution for Estimate the Speed with Which Electrons Emitted from a Heated Emitter of an Evacuated Tube Impinge on the Collector Maintained at a Potential Difference of 500 V with Respect to the Emitter. - CBSE (Science) Class 12 - Physics
ConceptExperimental Study of Phot... | HuggingFaceTB/finemath | |
# TI-82: Statistics Mode
## 1-Variable Statistics
There is one routine on the calculator, called 1-Variable Statistics which will find
• the sample mean
• the sum of the data values
• the sum of the squares of the data values
• the sample standard deviation
• the population standard deviation
• the sample size
• the... | HuggingFaceTB/finemath | |
Warning: A non-numeric value encountered in /home/issfi/public_html/wp-content/plugins/the-events-calendar/src/Tribe/I18n.php on line 253
Warning: A non-numeric value encountered in /home/issfi/public_html/wp-content/plugins/the-events-calendar/src/Tribe/I18n.php on line 256
Warning: A non-numeric value encountered i... | open-web-math/open-web-math | |
# Can we make the set of all non-negative integers a field? [duplicate]
Can we define any kind of addition and multiplication on the set of all non-negative integers such that it becomes a field. I think not. Can we prove this ? If we have only a finite collection with prime cardinality then only it may become a field... | HuggingFaceTB/finemath | |
# KeiruaProd
## Better odds against my 3-year-old kids at its favorite game
My 3-year-old kid has become a huge, huge fan of his card game “Ballons.” We’ve been playing many games every day during the last three months. The game is straightforward, so after a while, I had to find something to fuel some interest in pl... | HuggingFaceTB/finemath | |
# Write an algorithm to find an optimal binary search tree using dynamic programming
Back to Greedy algorithms 8. I am doing it first to round out our discussion of graphs with these important algorithms. Certainly be very capable with the short algorithms and the ideas of shortest paths and transitive closure. In wha... | HuggingFaceTB/finemath | |
# Simplifying Fractions using "Keep,Change,Flip"
In the words of Flocabulary, " Keep, change, Flip, yea that's the action, everybody's gonna know how were dividing fractions"
In this video you will learn how to simplify complex fractions.
A complex fraction sounds difficult, but it is simply a fraction on top of a ... | HuggingFaceTB/finemath | |
# Subtraction of Numbers without using Number Line
Learn the rules used for subtraction of numbers without using number line. When the numbers are big, the use of number line is not convenient for their subtraction. Also, it is very time consuming to draw a number line every time, and perform the operation of subtract... | HuggingFaceTB/finemath | |
## Fermat's Last Theorem
A theorem first proposed by Fermat in the form of a note scribbled in the margin of his copy of the ancient Greek text Arithmetica by Diophantus. The scribbled note was discovered posthumously, and the original is now lost. However, a copy was preserved in a book published by Fermat's son. In ... | HuggingFaceTB/finemath | |
# How To Calculate Percent Ionization
It is to be noted that the strong acids and bases dissociate or ionize completely so their percent ionization is 100%. This means that each hydrogen ions from each acidic molecule or the hydroxide ions from each basic molecule separate or donate. So, only the percent ionization of... | HuggingFaceTB/finemath | |
# Euclid's Muse
## your source for INTERACTIVE math apps
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# Search Results for “Diagonals”
##### Circles, Tangents and Nonagon Diagonals
You may want to see the heptagon version before attempting this one Every diagonal within a regular nonagon is drawn. Circles are centered at each intersection of... | HuggingFaceTB/finemath | |
Research-based guidance and classroom activities for teachers of mathematics
# Using algebra to reason
Using Algebra to reason is a theme within quantities and algebraic expressions. Links to relevant activities and resources are on the right hand side of this page.
Algebra lets us apply additive and multiplicative... | HuggingFaceTB/finemath | |
Browse Questions
# If functions $f\;:\;A \rightarrow B\;and\;g\;:\;B \rightarrow A$ satisfy g o f =$I_A$ ,then is f one-one and g onto
Toolbox:
• A function $f:X \rightarrow Y$ where for every $x1, x2 \in X, f(x1) = f(x2) \Rightarrow x1 = x2$ is called a one-one or injective function
• A function$f : X \rightarrow Y$... | open-web-math/open-web-math | |
# AnyGamble
Mar 20, 2017
Testing roulette system
# Testing Roulette Systems - The Five Number System
This system called System of 5 numbers is played in the relatively simple way. You choose any 5 numbers and you keep betting on them. The basic series consists of 17 spins with the following progression: in the first... | HuggingFaceTB/finemath | |
current amplification of a circuit containing a transistor
I'm having trouble with a BJT circuit. What we are given:
$U_{CC} = 10\text{V}$
$R_C = 972 \Omega$
$R_B = 14\text{k} \Omega$
$U_{\text{BE}} = 0.7\text{V}$ $I_C = 12\text{mA}$
We need to find the current amplification $B$.
My approach was to calculate $U_C$, ... | HuggingFaceTB/finemath | |
X
X
# Calculate the Least Common Multiple or LCM of 481
The instructions to find the LCM of 481 are the next:
## 1. Decompose all numbers into prime factors
481 13 37 37 1
## 2. Write all numbers as the product of its prime factors
Prime factors of 481 = 13 . 37
## 3. Choose the common and uncommon prime facto... | HuggingFaceTB/finemath | |
# Twenty times a positive integer is less than its square by 96, what is the integer?
### Computer MCQs Series for PPSC, FPSC – Most Repeated MCQs | Set 5
What are you looking for? Let’s dig in quickly
## Explanation
• Twenty times a positive integer is less than its square by 96.
The integer can be figure out i... | HuggingFaceTB/finemath | |
## 50594
50,594 (fifty thousand five hundred ninety-four) is an even five-digits composite number following 50593 and preceding 50595. In scientific notation, it is written as 5.0594 × 104. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 24,640 positive integers (up to... | HuggingFaceTB/finemath | |
# Difference between revisions of "2013 AMC 12A Problems/Problem 3"
We are given that $\frac{6}{10} = \frac{3}{5}$ of the flowers are pink, so we know $\frac{2}{5}$ of the flowers are red.
Since $\frac{1}{3}$ of the pink flowers are roses, $\frac{2}{3}$ of the pink flowers are carnations.
We are given that $\frac{3}... | HuggingFaceTB/finemath | |
# Finding a general equation for a quadratic curve passing through three points.
I have three points (250, 0), (500,500) and (750, 0). To find a curve passing through these points all I have to do is plug-in these values into the general quadratic equation:
f(x) = ax^2 + bx + c
getting:
f(x) = -x^2/125 + 8x -1500
... | HuggingFaceTB/finemath | |
# Thirty-third harmonic
No description. (Wikipedia).
03 Placing numbers on a number line #38
In this video we place rational and irrational numbers on the number line
From playlist Skill 13 Attempt 2
Physics - Mechanics: Mechanical Waves (18 of 21) Standing Waves: Resonance Frequency 3: 3rd Harmonic
Visit http://... | HuggingFaceTB/finemath | |
It is currently 21 Oct 2017, 09:14
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# Maths Ocr 2016 C1 Watch
1. (Original post by KevinGu123456789)
For the question about the circle being wholly inside the other, did anyone else get 0<r<√45 - 5?
Most people got 0<r<2, but I thought that this may not be ... | HuggingFaceTB/finemath | |
# What is the next number in this sequence? (My first)
This is my first attempt at a question. Please let me know what you think of it, I came up with the idea for it while trying to figure out some of the other sequence questions here.
1, 2, 5, 10, 21, 42, 85, ?
I can add a hint if needed.
-P.S. I have not been ar... | HuggingFaceTB/finemath | |
# How to prove : (( P → Q ) ∨ ( Q → R )) by natural deduction
Here's another of Tomassi's exercises I can't solve (Logic, page 106):
: (( P → Q ) ∨ ( Q → R ))
I have to use natural deduction and the only rules I know are:
• assumptions,
• modus ponendo ponens,
• modus tollendo tollens,
• double negation,
• cond... | HuggingFaceTB/finemath | |
848 views
Find the minimum value of $3-4x+2x^2$.
in Calculus
edited | 848 views
0
(≤ 720)
what is this?
$f(x) = 3-4x+2x^2$
$f '(x) = -4 + 4x = 0 \implies x=1$
$f ''(x) = 4$
$f ''(1) = 4>0$, therefore at $x=1$ we will get minimum value, which is : $3 - 4(1) + 2(1)^2 = 1.$
by Loyal (8.1k points)
edited | open-web-math/open-web-math | |
## What is a lognormal distribution?
From the intuitive perspective, a quantity or variable is likely to be lognormally dsitributed if it often changes by a percentage. For instance, a stock’s return could go up by 5% today but decrease by 10% the next day. A lognormally distributed quantity $Y$ can be expressed as th... | HuggingFaceTB/finemath | |
# Re: Different problem
[ Follow Ups ] [ Post Followup ] [ Main Message Board ] [ FAQ ]
Posted by Denis Borris on November 05, 2002 at 00:10:34:
In Reply to: Different problem posted by Mike on November 04, 2002 at 22:23:21:
: A car and a bus set out at 3pm from the same point headed in the same
: direction. The av... | HuggingFaceTB/finemath | |
# 2 kg
Convert 2 Kilograms to Pounds
26 rows · A pound is a unit of weight commonly used in the United States and the British commonwealths. A pound is defined as exactly 0.45359237 kilograms.
KGLB
2.24 4.9384
2.23 4.9163
2.22 4.8943
2.21 4.8722
See all 26 rows on www.calculateme.com
1 Kilogram (kg) is equal to 2 ... | HuggingFaceTB/finemath | |
It is currently 17 Oct 2017, 15:54
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# Find the amount and the compound interest on Rs 160000 for 2 years
Question:
Find the amount and the compound interest on Rs 160000 for 2 years at 10% per annum, compounded half-yearly.
Solution:
Principal, $P=$ Rs. 160000
Annual rate of interest, $R=10 \%$
Rate of interest for a half year $=\frac{10}{2} \%=5 \... | HuggingFaceTB/finemath | |
10mL equals two teaspoons (2tsp). A tablespoon is 3 times bigger 보다 a teaspoon and also three teaspoons equal one tablespoon (1Tbsp or 1Tb). One tablespoon likewise equals 15mL.
You are watching: How many teaspoons is in 10 ml
Similarly, you might ask, what is 10 mL equivalent to in teaspoons?
convert 10 Milliliters... | HuggingFaceTB/finemath | |
# 850000000 (number)
850,000,000 (eight hundred fifty million) is an even nine-digits composite number following 849999999 and preceding 850000001. In scientific notation, it is written as 8.5 × 108. The sum of its digits is 13. It has a total of 16 prime factors and 144 positive divisors. There are 320,000,000 positi... | HuggingFaceTB/finemath | |
# 468990 (number)
468,990 (four hundred sixty-eight thousand nine hundred ninety) is an even six-digits composite number following 468989 and preceding 468991. In scientific notation, it is written as 4.6899 × 105. The sum of its digits is 36. It has a total of 8 prime factors and 48 positive divisors. There are 124,4... | HuggingFaceTB/finemath | |
0
1.4kviews
Find the maximum permissible unbalanced in order to limit the steady state deflection to 5mm peak to peak.
0
131views
A centrifugal pump, weighing 60N and operating at 1000 rpm, is mounted on six springs of stiffness 600 ON/m each, Find the maximum permissible unbalanced in order to limit the steady state ... | HuggingFaceTB/finemath | |
# M2 2017 4 Edexcel
(a)
The particle is instantaneously at rest when v = 0, ie. when:
v = 3t^2 - 16t + 21 = (3t - 7)(t - 3) = 0
So either t = \dfrac 7 3 or t = 3. Since \dfrac 7 3 < 3, we have t_1 = \dfrac 7 3 and t_2 = 3.
(b)
We know that the acceleration a is given by:
\displaystyle a = \frac {\mathrm dv} {\ma... | HuggingFaceTB/finemath | |
# How do you solve 7x-1=9+2x?
Feb 14, 2016
color(green)(x=2
#### Explanation:
color(blue)(7x-1=9+2x
Remember the golden rule of Algebra-what we do in one side must be done in the other side also.
Add $1$ both sides:
$\rightarrow 7 x - 1 + 1 = 9 + 2 x + 1$
$\rightarrow 7 x = 10 + 2 x$
Subtract $2 x$ both sides:... | HuggingFaceTB/finemath |
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