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# Solve the following system of equations by using the method of subtraction:\begin{align} & x+2y=-1 \\ & 2x-3y=12 \\ \end{align}
Last updated date: 16th Jul 2024
Total views: 449.7k
Views today: 9.49k
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Hint: From the 2 equa... | HuggingFaceTB/finemath | |
## Definitions 20 and 21
Def. 20. Of trilateral figures, an equilateral triangle is that which has its three sides equal, an isosceles triangle that which has two of its sides alone equal, and a scalene triangle that which has its three sides unequal.
Def. 21. Further, of trilateral figures, a right-angled triangle i... | HuggingFaceTB/finemath | |
# Padding to 0. Same vs Valid
The correction says that p=0 means valid conv while when applying the formula Andrew mentioned, it doesn’t make a difference to set p=0 or not. I mean p=0 still results in “same convolution”
From my understanding, the formula: (n + 2p - f / s) + 1 == (39 + 2*0 - 3 / 1) + 1 == (39 + 0 - 3... | HuggingFaceTB/finemath | |
# Are neutrons in a neutron star relativistic?
1. Sep 30, 2014
### skujesco2014
As the title of the thread suggests, I'm interested in estimating the velocity distribution of neutrons in neutron star cores. Putting T ~ 10^12K gives v ~ 15%c or more under Boltzmann statistics. Could someone provide more information o... | open-web-math/open-web-math | |
Rags to Riches: Answer questions in a quest for fame and fortune.
# Easy Percents
Percents are easy. A percent is part OF (times) a value. The easiest way to figure out the value is to find 10% (divide by 10). Then if you want 30% that is 10% + 10% + 10% or 3*(10%). Multiply your 10% value by 3! Simple! | HuggingFaceTB/finemath | |
Live Math Help – Live Math Tutor Online Chat – Math Homework Help
# Why Choose TutorEye for your Math Homework help?
Our Math homework helpers provide step-by-step solutions, to help students understand complex math problems with ease and always stay prepared for exams or tests.
## Core Math Homework Topics
### Alg... | HuggingFaceTB/finemath | |
# How to reconstruct original signal from continuous wavelet coefficients
19 ビュー (過去 30 日間)
Hai Tran 2016 年 6 月 11 日
コメント済み: Hai Tran 2016 年 6 月 14 日
Dear all, After using CWT (signal,3:10,'haar'), i got one matrix with CWT coefficients with scale from 3 to 8. I still do not understand 2 bellow problems: 1. How can i ... | HuggingFaceTB/finemath | |
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# `{:("स्तम्भ",(A),"स्तम्भ",(B)),((1)," बिन्दु (3,4) की मूल बिन्दु से दुरी होगी ",(a),(3)/(7)),((2),"यदि बिन्दु (3,5) ,(6,9) तथा (x,3) संरेख हो, तो का x मान होगा":" ",(b),3),((3),"बिंदुओं (3,5) तथा (-4,2) को मिलाने वाली रेखा की प्रवणता होगी :",(b),(7)/(2)),((4),k"के कि... | HuggingFaceTB/finemath | |
+0
# Fraction asap math
0
91
3
+120
In woodworking class, Carlos has a board with a length of 10 5/6 inches. He cut two boards from it at a length of 2 1/4 inches each. How much of the original board is left?
May 21, 2021
#1
0
8 7/12 of the board is left.
May 21, 2021
#2
0
Show work instead of guessing. We get ... | HuggingFaceTB/finemath | |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
# Midpoint Formula
## Determine the midpoints of line segments by taking the average of x values and average of y values
Estimated16 minsto complete
%
Progress
Practice Midpoint Formula... | HuggingFaceTB/finemath | |
Group Activity Cards
Algebra Use groups of 2. Materials: Counters, balance, index cards Weighty Matters
Find the weight in counters of three small classroom objects--for example, a piece of chalk. Weigh one object at a time. Place the object on one pan. Then place counters one at a time on the other pan until the pa... | HuggingFaceTB/finemath | |
# Problem Set V Solutions
Size: px
Start display at page:
Transcription
1 Problem Set V Solutions. Consider masses m, m 2, m 3 at x, x 2, x 3. Find X, the C coordinate by finding X 2, the C of mass of and 2, and combining it with m 3. Show this is gives the same result as 3 i= X = m ix i 3 i= m. i The center of mass... | HuggingFaceTB/finemath | |
# Show recursion in closed form
I've got following sequence formula: $a_{n}=2a_{n-1}-a_{n-2}+2^{n}+4$
where $a_{0}=a_{1}=0$
I know what to do when I deal with sequence in form like this:
$a_{n}=2a_{n-1}-a_{n-2}$ - when there's no other terms but previous terms of the sequence. Can You tell me how to deal with this ... | HuggingFaceTB/finemath | |
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# Mathematics
### How to Get A and A* in Maths A Level – The Ultimate Guide
Maths A-Level is a terrific subject that allows you to improve your logic, reasoning, and problem-solving skills. It does so by combining Pure Maths modules such as algebra, geom... | HuggingFaceTB/finemath | |
# Useful Excel formulas for SEOs and Marketers
[Guest post by Kristina Azarenko from Amasty]
Many of us use Excel every day as its layout makes it easy to structure information, analyze it, build different charts, etc. But hardly anybody knows how many features Excel really has (I don’t think Excel creators themselve... | HuggingFaceTB/finemath | |
0
# What is a two figure number?
Updated: 12/23/2022
Wiki User
11y ago
a two-digit one.
Wiki User
11y ago
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Q: What is a two figure number?
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Two.
two thousand
### Congruent figure must have how many sides?
Any number you like, as long as the two figur... | HuggingFaceTB/finemath | |
1. Chapter 13 Class 7 Exponents and Powers
2. Serial order wise
3. Examples
Transcript
Example 6 Work out (1)5, (–1)3, (–1)4, (–10)3, (–5)4. Any power of 1 gives 1 (1)5 = 1 × 1 × 1 × 1 × 1 = 1 × 1 × 1 = 1 × 1 = 1 (−1)3 = −1 × −1 × −1 = 1 × −1 = −1 (−1)4 = −1 × −1 × −1 × −1 = 1 × 1 = 1 (−10)3 = −10 × −10 × −10 = 10 ... | HuggingFaceTB/finemath | |
# How does a center tapped transformer work?
I'm having trouble understanding the electric principles that allow a center tapped transformer to work. Lets say we're working with 240/120V. I understand if you connect a voltmeter across the top and bottom wires, you'll get 240V, and 120V between the center tap and other... | HuggingFaceTB/finemath | |
# Simplifying a complicated expression (with no variables)
I am trying to obtain some exact analytical results without resorting to numerical approximations, and I ended up with a pretty huge expression that Mathematica is really struggling with. It has no variables, no crazy things like 17th degree polynomials etc. b... | HuggingFaceTB/finemath | |
0
# Are integers real numbers
Updated: 4/28/2022
Wiki User
11y ago
yes
Yes, integers are real numbers.
Wiki User
11y ago
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Q: Are integers real numbers
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### Are some real number integers?
All integers are real numbers, but not all real numbers are integ... | HuggingFaceTB/finemath | |
## Credits
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## Edge length of Elongated Triangular Pyramid given volume Solution
STEP 0: Pre-Calc... | HuggingFaceTB/finemath | |
# construction of magic square of odd length
The construction of an $n\times n$ magic square with $n$ being odd is simple. (The letter $x$ will be used as a placeholder).
First, place the number 1 in the middle square of the top row.
$\begin{bmatrix}x&x&1&x&x\\ x&x&x&x&x\\ x&x&x&x&x\\ x&x&x&x&x\\ x&x&x&x&x\\ \end{... | HuggingFaceTB/finemath | |
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# More Special Features in Python
Last Updated on June 21, 2022
Python is an awesome programming language! It is one of the most popular languages for developing AI and machine learning applications. With a ver... | open-web-math/open-web-math | |
# Calculate $\lim\limits_{ x\rightarrow 100 }{ \frac { 10-\sqrt { x } }{ x+5 } }$
$$\lim_{ x\rightarrow 100 }{ \frac { 10-\sqrt { x } }{ x+5 } }$$
Could you explain how to do this without using a calculator and using basic rules of finding limits? Thanks
-
Just plug in: the function is continuous and defined at $100... | open-web-math/open-web-math | |
## Monthly Archives: February 2015
### Trigonometry puzzle
Prove that $1-\cot 23\deg=\frac{2}{1-\cot 22\deg}$
Proof:
To prove the above is the same as proving $(1-\cot 23\deg)(1-\cot 22\deg)=2$
Indeed, by the addition and subtraction formulae, we obtain:
$(1-\cot 23\deg)(1-\cot 22\deg)=(1-\frac{\cos 23\deg}{\sin ... | open-web-math/open-web-math | |
Cody
# Problem 1925. Smith numbers
Solution 1820848
Submitted on 21 May 2019 by Eric Mueller
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
x = 4; tf_correct = true; assert(isequal(isSmith(x),tf_c... | HuggingFaceTB/finemath | |
# Factorial inequation
##### New member
Hello,i hope everybody on this forum is fine, I'm actually in grade 12 and I need
Help for a inequation with factorial :
(K^(n+1))/K(n!) <= (K^K) / K!
Thank you
Ps sorry for my English it is not my mother langage...
#### Dr.Peterson
##### Elite Member
What is the goal? Are you... | HuggingFaceTB/finemath | |
Вы находитесь на странице: 1из 8
Integration & Differentiation
What you are given and what you need to know in C4
FORMULAE FOR EDEXCEL
2013/14
Integration & Differentiation
Differentiation | 2013/14&
Integration
What you are given and what you need to know in C4
Recap of C3 facts
Exact Values of trigonometric... | HuggingFaceTB/finemath | |
# Axioms of Boolean Algebra
• Difficulty Level : Medium
• Last Updated : 10 Feb, 2022
In this article, we are going to discuss Axioms of Boolean Algebra; these axioms/Theorems are important as these will be used in many different topics of Digital Electronics like Sequential Circuit Designing and Combinational Circui... | HuggingFaceTB/finemath | |
# Solving Systems of Equations by Graphing- LEVEL 2- Walk Around Activity
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Also included in:
1. 6 Systems of Equations Activities This package includes the following activities Walk Around Activity - Graphing Systems of Equ... | HuggingFaceTB/finemath | |
# Pricing call option
Question: The price of a stock is 100. With equal probabilities, it either goes up to 130 or down to 70. What is the price of a 1 year call option with exercise price 100. Risk free rate is 5%.
Attempt: I use black scholes.
• Given: $Su=130. Sd=70.rf=5% S_0=100$
• $Cu=max(0,130-100)=30. Cd=max(... | HuggingFaceTB/finemath | |
# probability mass function of a random pick from either of the other two random entities.
This is not a hypothesis testing problem.
Let $Z$ be discrete non-negative random variable, such that it picks either the value of random variable $X$ with probability $p$ or the random variable $Y$ with probability $q$. The pd... | HuggingFaceTB/finemath | |
# intermidate algebra
solve equation(rational expression)
3/10=5/x
3x=50
x=50/3
x=16 2/3
is this right.
1. 👍 0
2. 👎 0
3. 👁 96
1. I believe you are right. WHatever you do to one side of the equation, you have to do to the other, and it seems like you followed that algebra rule correctly.
1. 👍 0
2. 👎 0
2. It is... | HuggingFaceTB/finemath | |
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# ACT Math Prep
ACT Math Prep. Matt Thrasher Upward Bound Academic Advisor North Hennepin Community College 763-488-0260 mthrasher@nhcc.edu. Before we start. Get a good night’s rest. Eat what you always eat for breakfast. Use the test booklet for scratch paper. You can’t bring your own.
## ACT Math Prep
E N ... | HuggingFaceTB/finemath | |
## 585991
585,991 (five hundred eighty-five thousand nine hundred ninety-one) is an odd six-digits composite number following 585990 and preceding 585992. In scientific notation, it is written as 5.85991 × 105. The sum of its digits is 37. It has a total of 3 prime factors and 6 positive divisors. There are 502,236 po... | HuggingFaceTB/finemath | |
## Thursday, June 25, 2015
### USA Mathematical Olympiad 1989 Problem (Third Method)
USA Mathematical Olympiad 1989 Problem (Third Method)
Which is larger, the real root of $x + x^2 + ... + x^8 = 8 - 10x^9$, or the real root of $x + x^2 + ... + x^{10} = 8 - 10x^{11}$?
My solution:
First, notice that
$1-x^9=(1-x)(... | open-web-math/open-web-math | |
# Andrica's conjecture implies Legendre's conjecture
Does Andrica's conjecture imply Legendre's conjecture? I have the following reasoning.
Let $p_n$ denote the $n$th prime. Recall that Andrica's conjecture is the following statement: $$\sqrt{p_{n+1}}-\sqrt{p_n}<1,$$
for all positive nonzero integer $n$. On the othe... | HuggingFaceTB/finemath | |
# How algorithms that correct your spelling also help find cures for diseases.
--
Autocorrection is used everywhere. You use them in your phones, tablets, computers, word processors, even on Medium.
Sometimes it can give us a helping hand correcting us as we type.. but sometimes it can lead to some hilarious convers... | HuggingFaceTB/finemath | |
# Advanced Mechanics of Materials and Applied Elasticity: Analysis of Stress
• Print
This chapter is from the book
## 1.14 Normal and Shear Stresses on an Oblique Plane
A cubic element subjected to principal stresses s 1, s 2, and s 3 acting on mutually perpendicular principal planes is called in a state of triaxial... | HuggingFaceTB/finemath | |
# Body volume + cube root - math problems
#### Number of problems found: 46
• Cube containers Replace the two cube-shaped containers with 0.8 dm and 0.6 dm edges with a single cube-shaped one so that it has the same volume as the two original ones together. What is the length of the edge of this cube?
• Thousand ball... | HuggingFaceTB/finemath | |
# Solution to homogeneous wave equation
• kiwi101
In summary, we are using the chain rule to find the partial derivatives of a function U(t,R) that is defined by a general function f(t-R√με), and plugging those derivatives into the homogeneous wave equation to prove that U is a solution.
kiwi101
## Homework Statement... | HuggingFaceTB/finemath | |
# Show that one cannot make a 8×8 square using 15 T-tetrominoes and 1 square tetromino
Show that one cannot make a 8×8 square using 15 T-tetrominoes and 1 square tetromino.
• Typically these problems either have a simple solution using congruence/parity arguments (as the Answers show in this case) or they turn out to... | HuggingFaceTB/finemath | |
# School Mathematics Math Class 11 Practical Tests and Answers
## Description
School Mathematics Math Class 11 Practical Tests and Answers
Save your Time and Effort ….. Mathematics Math Class 10 Practical Tests and Answers [%99 PASS]
Mathematics (from Greek: μάθημα, máthēma, ‘knowledge, study, learning’) is an area... | HuggingFaceTB/finemath | |
# Parallel axis theorem
1. Oct 2, 2007
### Edwardo_Elric
1. The problem statement, all variables and given/known data
A thin rectangular sheet of steel is 0.30m by 0.40m and has mass 0.470kg. Find the moment of inertia about an axis that is perpendicular to the plane of the sheet and that passes through one corner o... | HuggingFaceTB/finemath | |
# What is the asymptotic of the irregular blue curve? Is it $(8x)^{1/2}$ or is it something else?
From Terry Tao's post here there is the statement:
"Conversely, if one can somehow establish a bound of the form
$$\displaystyle \sum_{n \leq x} \Lambda(n) = x + O( x^{1/2+\epsilon} ) \tag{1}$$
for any fixed $${\epsilo... | HuggingFaceTB/finemath | |
# PSAT Math Strategies and Linear Equations
Because the PSAT is a standardized test, students who approach each question in a consistent way will be rewarded on Test Day. Applying the same basic steps to every PSAT math question—whether it asks you about geometry, algebra, or even trigonometry—will help you avoid mino... | HuggingFaceTB/finemath | |
# Triangle wave
A bandlimited triangle wave pictured in the time domain (top) and frequency domain (bottom). The fundamental is at 220 Hz (A3).
A triangular wave or triangle wave is a non-sinusoidal waveform named for its triangular shape. It is a periodic, piecewise linear, continuous real function.
Like a square w... | HuggingFaceTB/finemath | |
# The average age of 22 people in a group was 12 years, if 5 people left whose average age was 13 years and then 2 people joined whose average age was 11 years, then find the new average age of the group.
1. 11.63 years
2. 12.15 years
3. 12.63 years
4. 11.15 years
## Answer (Detailed Solution Below)
Option 1 : 11.63... | HuggingFaceTB/finemath | |
Search a number
BaseRepresentation
bin1010100010010000100
3122112112221
41110102010
542021340
611222124
72635321
oct1242204
9575487
10345220
11216407
12147944
13c1195
148db48
156c44a
hex54484
345220 has 24 divisors (see below), whose sum is σ = 744408. Its totient is φ = 134400.
The previous prime is 345193. The next... | HuggingFaceTB/finemath | |
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A276980 Odd squarefree numbers n > 1 such that lambda(n)^2 = phi(n), where lambda is the Carmichael lambda function and phi is Euler's totient function. 1
273, 1729, 2109, ... | HuggingFaceTB/finemath | |
## Elementary Algebra
First, we simplify the expression: $1.2x+2.3x-1.4x-7.6x$ =$3.5x-1.4x-7.6x$ =$2.1x-7.6x$ =$-5.5x$ We evaluate the expression by substituting the value of $x=-2.5$ into the expression, $-5.5x$ =$-5.5(-2.5)$ =$-\frac{55}{10}\times-\frac{25}{10}$ =$\frac{-55\times-25}{10\times10}$ =$\frac{1375}{100}$... | HuggingFaceTB/finemath | |
Pre calc
posted by .
How do you test for symmetry in an equation? For example, y = x to the fifth power + x to the third power + x?
• Pre calc -
To test for symmetry, first you need to know what kind of symmetry you want to test for. Is it Over-The-Origin Symmetry, or Over-The-X-Axis Symmetry, or Over-The-Y-Axis Sy... | HuggingFaceTB/finemath | |
## How to Calculate and Solve for Recoil Velocity | Motion The image above represents recoil velocity.
To compute for recoil velocity, three essential parameters are needed and these parameters are M, V and m.
The formula for calculating recoil velocity:
v = (-(M) x V) / m
Let’s solve an example;
Find the recoil ve... | HuggingFaceTB/finemath | |
# diameter
## Definitions
• LARVA OF EPHEMERA, OR MAY-FLY, MAGNIFIED TWO DIAMETERS
• WordNet 3.6
• n diameter the length of a straight line passing through the center of a circle and connecting two points on the circumference
• n diameter a straight line connecting the center of a circle with two points on its perime... | HuggingFaceTB/finemath | |
# A fitness instructor purchases excercise bikes and treadmills for two gyms.For the first Gym,2 excercise bike and 3 treadmills cost $2200.For the second Gym,3 excercise bike and 4 treadmills cost$3000.How much does a treadmill cost ?
Step-by-Step Solution:-
Let x and y be the price of exercise bike (e) and treadmil... | HuggingFaceTB/finemath | |
# Posts by: Fred
Fred Gella is a blog enthusiast and spends most of his time creating tutorials and resources for his blog Wordpress DO, a blog on how to create cheaper and optimized Wordpress websites. He loves mathematics and statistics too, that's why he is also regularly writing here.
## One-Step Equations Contai... | HuggingFaceTB/finemath | |
## What's a billion?
Example 1:
A billion is a 1 with 9 zeros after it >> 1,000,000,000
So, 9 zeros. What does that mean? We call a very wealthy person a millionaire, which means that they are worth a million dollars or more. A million is a 1 with 6 zeros after it >> 1,000,000. A thousand is a 1 with 3 zeros ... | HuggingFaceTB/finemath | |
# 2009 USAMO Problems/Problem 1
## Problem
Given circles $\omega_1$ and $\omega_2$ intersecting at points $X$ and $Y$, let $\ell_1$ be a line through the center of $\omega_1$ intersecting $\omega_2$ at points $P$ and $Q$ and let $\ell_2$ be a line through the center of $\omega_2$ intersecting $\omega_1$ at points $R$... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Working systematically similar to Waiting for Blast Off:
Filter by: Content type:
Stage:
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### There are 337 results
Broad Topics > Using, Applying and Reasoning about Mathematics > Working systematically
### Waiting for Blast Off
##### Stage: 2 Challeng... | HuggingFaceTB/finemath | |
Biology Questions Answers (MCQ) listing of General Intelligence is important for General Knowledge of SSC CGL, UPSC, IBPS, MAT, CAT and other competitive exams.
1) If a sum of money doubles itself in 8 years at simple interest, the ratepercent per annum
• 1) 12
• 2) 12.5
• 3) 13
• 4) 13.5
Ans. B
Explanation :
Let s... | HuggingFaceTB/finemath | |
# Word problem
#### sams
Quarters and Half Dollars equal value of $6.25. There are 16 coins. How many of each coin? I know the answer: 7 quarters, 9 half dollars but getting confused on the equation. #### stapel ##### Super Moderator Staff member Pick a variable for the number of quarters, and another variable for th... | HuggingFaceTB/finemath | |
You will need
• a pair of compasses;
• - the range;
• pencil.
Instruction
1
To start building, draw an arbitrary circle and label its center O. Then draw the radius of this circle in any direction. The point of intersection of a radius with a circumference indicate by the letter A. then move the compass to point a and ... | HuggingFaceTB/finemath | |
+0
# Someone help me!
0
567
1
+588
1. Kayla wants to find the distance, AB, across a river. She walks along the edge of the river 100 ft and marks point C. Then she walks 100 ft further and marks point D. She turns 90° and walks until her location, point A, and point C are collinear. She marks point E at this locati... | HuggingFaceTB/finemath | |
# Chapter 20 ELECTRIC CURRENT, RESISTANCE, AND OHM’S LAW
## Presentation on theme: "Chapter 20 ELECTRIC CURRENT, RESISTANCE, AND OHM’S LAW"— Presentation transcript:
Chapter 20 ELECTRIC CURRENT, RESISTANCE, AND OHM’S LAW
College Physics Chapter 20 ELECTRIC CURRENT, RESISTANCE, AND OHM’S LAW PowerPoint Image Slideshow... | HuggingFaceTB/finemath | |
# Middle School Math Content
Absolute Value
These worksheets and printable activities will help students to learn about the absolute value of numbers. Includes identifying values, opposite numbers, ordering, and comparing.
Algebra and Pre-Algebra
Work with basic algebraic expressions, equations, and inequalities. L... | HuggingFaceTB/finemath | |
# Numbers 3032
Find three numbers so that the second number is three times larger than the first and the third is six larger than the second number. Their sum is 62
a = 8
b = 24
c = 30
### Step-by-step explanation:
b=3a
c=b+6
a+b+c=62
b=3·a
c=b+6
a+b+c=62
3a-b = 0
b-c = -6
a+b+c = 62
Row 3 - 1/3 · Row 1 → Row... | HuggingFaceTB/finemath | |
## Precalculus (6th Edition) Blitzer
$\frac{(x-2)^2}{25}+\frac{(y+1)^2}{9}=1$, see graph, foci $(6,-1)$ and $(-2,-1)$.
Step 1. Rewrite the given equation as $9(x^2-4x+4)+25(y^2+2y+1)=164+36+25=225$ or $\frac{(x-2)^2}{25}+\frac{(y+1)^2}{9}=1$, Step 2. We have $a^2=25, b^2=9$ and $c=\sqrt {a^2-b^2}=4$. The ellipse is ce... | HuggingFaceTB/finemath | |
# The Dimension of a Quotient Vector Space
Consider $X= \mathbb{R}^2-\{(0,0),(1,0),(2,0),(3,0)\}.$ Let $V$ be the vector space of irrotational vector fields over $X.$ Let $W$ be the vector space of conservative vector fields over $X.$ What is the dimension of $V/W?$
So far I have deduced through basic definitions tha... | open-web-math/open-web-math | |
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# Section 5.1 - PowerPoint PPT Presentation
Section 5.1. What is Probability?. Probability. Probability is a numerical measurement of likelihood of an event. The probability of any event is a number between zero and one . Events with probability close to one are more likely to occur.
I am the owner, or an age... | HuggingFaceTB/finemath | |
# Cyclic modules over local rings
Let $R$ be a local ring. If two cyclic right $R$-modules are epimorphic images of each other, are these modules necessarily isomorphic?
• If $R$ is implicitly assumed commutative, the tag ac.commutative-algebra should be used. If not, perhaps it could be specified too. – YCor Jun 6 '... | open-web-math/open-web-math | |
Get access to a wealth of useful information, valuable resources, and exciting updates on the latest trends in the industry.
# Excavation Calculator – Calculate excavated Material Volume (Free)
Here is simple to use excavation calculator that will help users estimate the quantity of excavation in cubic meters, cubic ... | HuggingFaceTB/finemath | |
# Prove an inequality involving positive real numbers Lagrange multipliers
This is from Apostol's Calculus, Vol. II, Section 9.15 #11:
Find the maximum of $f(x,y,z)=\log x + \log y + 3 \log z$ on that portion of the sphere $x^2+y^2+z^2=5r^2$ where $x>0,\,y>0,\,z>0$. Use the result to prove that for real positive numb... | HuggingFaceTB/finemath | |
1. Home
2. - Critical Speed On A Ball Mill
# Critical Speed On A Ball Mill
### Critical Speed Of A Ball Mill
Critical speed of a ball mill and ball size – Grinding Mill Posted at July 30, 2012. Ball mill – Wikipedia, the free encyclopedia The critical speed can.Therefore, the critical speed of mill is 17.26 m s. Ca... | HuggingFaceTB/finemath | |
# What's the algebraic property where you can flip the fractions in an equation?
Earlier in algebra, we spent over 20 minutes trying to figure out
$$\frac{1}{R_1} + \frac{1}{R_2} = \frac{1}{R_e} \,\,\,\, \text{solve for }R_2$$
when the teacher said "What you start out with is the same as what you learned in pre-alge... | HuggingFaceTB/finemath | |
# Physics Quiz: Speed And Acceleration Practice Test!
Approved & Edited by ProProfs Editorial Team
The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in... | HuggingFaceTB/finemath | |
Class 7 Maths
# Perimeter And Area
## Square and Rectangle
Perimeter of square = 4 × Side
Area of square = Side × Side = (Side)2
Perimeter of Rectangle = 2 × (Length + Breadth)
Area of Rectangle = Length × Breadth
### Exercise 11.1
Question 1: The length and the breadth of a rectangular piece of land are 500m a... | HuggingFaceTB/finemath | |
# Thread: Condition of an exponent for convergence of an integral
1. ## Condition of an exponent for convergence of an integral
I must find for which values of $\displaystyle p \in \mathbb{R}$ the following integral converges : $\displaystyle \int_e^{+\infty} \frac{dx}{x\ln^p|x|}$. Mathstud28 already done that (well,... | HuggingFaceTB/finemath | |
Simplifying Rational Expressions
Steps to solve a rational equation algebraically
1. Factorize the polynomials in the denominator and numerator.
2. Cancel the common factors between the numerator and denominator.
3. There are some important formulas for factorizing polynomials. Just like for quadratic equation we k... | HuggingFaceTB/finemath | |
# Count specific day qty in date range.
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I'm trying to write a formula to look at the range of dates (start date column and finish date column), and count how many Mondays, or Tuesdays etc are within that date range. Specifically I have 3 columns to calculate. How many week days (2, 3, 4, 5 or 6) are in the... | HuggingFaceTB/finemath | |
Speed aircraft carrier based on reflected pulse frequency
Homework Statement
Submarine is traveling at 12 m/s toward an aircraft carrier emits a 2400 Hz sonar pulse. The reflected pulse returns with a frequency 2310 Hz.
What is the speed of the aircraft carrier?
(Positive/negative means the carrier is moving toward/a... | HuggingFaceTB/finemath | |
# Non-Linear Functions Worksheets
## PRINTABLE PDF NON-lINEAR FUNCTIONS WORKSHEET WITH ANSWERS
Check out our Non-Linear Functions Worksheets that will improve your student’s knowledge of solving complex equations. These worksheets are created in easy-to-download PDF format, come with answers, and are designed to simp... | HuggingFaceTB/finemath | |
# Speeding up Gaussian expectations
I found that Mathematica's Expectation operator is slow for Gaussian random variables, I'd like to scale to 100 dimensions, but it currently takes 10 seconds for 10 dimensions, looking forward to tips on how to speed this up.
Problem: for a Gaussian random variable $$x$$ in $$d$$ d... | HuggingFaceTB/finemath | |
## Evaluating Definite Integrals with Antiderivatives
If a function $f$ defined on $[a,b]$ has an antiderivative $F$ and is Riemann integrable, there is a surprisingly simple way to evaluate the following definite integral regardless of the nature of $f$.
Suppose $a = x_0 \lt x_1 \lt x_2 \lt x_3 \lt \cdots \lt x_n = ... | open-web-math/open-web-math | |
Past Year MCQ (Maths Standard)
Chapter 2 Class 10 Polynomials
Serial order wise
## (d) k[x 2 + 5x + 8]
This question is similar from Question 2 - CBSE Class 10 - Sample Paper for 2021 Boards - Maths Basic Introducing your new favourite teacher - Teachoo Black, at only ₹83 per month
### Transcript
Question 3 A quad... | HuggingFaceTB/finemath | |
# pre calculus
posted by .
evaluate if possible the function at the given values(s) of the independent variable. Simplify the results.
f(x)=7x-4
a) f(0)
b) f(-3)
c) f(b)
d) f(x-1)
• pre calculus -
f(x)=7x-4
So, you substitute:
a. 7(0)-4=-4
b. 7(-3)-4=-25
can you take it from here? | HuggingFaceTB/finemath | |
# Divide (40/(7y^2))÷45y^2 407y2÷45y2
Rewrite the division as a fraction.
407y245y2
Multiply the numerator by the reciprocal of the denominator.
407y2⋅145y2
Cancel the common factor of 5.
Factor 5 out of 40.
5(8)7y2⋅145y2
Factor 5 out of 45y2.
5(8)7y2⋅15(9y2)
Cancel the common factor.
5⋅87y2⋅15(9y2)
Rewrite the express... | HuggingFaceTB/finemath | |
# Thread: Probability and counting problems
1. ## Probability and counting problems
I need help to solve these problems :
1. A dartboard is divided into 6 sections. These 6 sections is given numbers : 49, 5, 54, 28, 37, 23. What is the least number of throws needed in order to get a score of exactly 100?
I have noti... | open-web-math/open-web-math | |
# 9 Tabular Data
## 9.1 Test of proportions
Many times, we are interested in estimating and inference on the proportion $$p$$ in a Bernoulli trial. For example, we may be interested in the true proportion of times that a die shows a 6 when rolled, or the proportion of voters in a population who favor a particular can... | HuggingFaceTB/finemath | |
# Unlocking the Power of 17/22 as a Percentage: Discover the Benefits and Applications
## Understanding the Importance of 17/22 as a Percentage
17/22 as a Percentage: In mathematical terms, 17/22 as a percentage refers to expressing the fraction 17/22 as a decimal multiplied by 100. This calculation allows us to unde... | HuggingFaceTB/finemath | |
Home > combinational logic circuits > half subtractor
Half-Subtractor
Subtraction is carried out column wise in the same way as that of the decimal number system.
In the first step, we subtract the LSBs and then move ahead towards the MSB. Wherever the
subtrahend (the bit to be subtracted) is larger than the minuen... | HuggingFaceTB/finemath | |
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# Mathematics
The National Curriculum for Mathematics in Year 1.
### Number & Place Value
Our children will be taught to:
• count to and across 100, forwards and backwards, beginning with 0 or 1, or from any given numbe... | HuggingFaceTB/finemath | |
## What Is the DuPont Identity?
The DuPont identity is an expression that shows a company's return on equity (ROE) can be represented as a product of three other ratios: the profit margin, the total asset turnover, and the equity multiplier.
## Understanding the DuPont Identity
The DuPont identity, commonly known as... | HuggingFaceTB/finemath | |
# Question #a22d8
##### 1 Answer
Jan 30, 2017
$C : y - 4 = \frac{1}{6} \left(x + 5\right)$
#### Explanation:
The equation of a line in $\textcolor{b l u e}{\text{point-slope form}}$ is.
$\textcolor{red}{\overline{\underline{| \textcolor{w h i t e}{\frac{2}{2}} \textcolor{b l a c k}{y - {y}_{1} = m \left(x - {x}_{1... | HuggingFaceTB/finemath | |
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Join Date: Mar 2012
Posts: 2
# Wind Curtailment
03/27/2012 10:30 PM
What I understand about wind curtailment is that the wind turbine is being shut down when the wind speed/power exce... | HuggingFaceTB/finemath | |
What is N-value?
In one of our previous posts, we blogged about plastic strain ratio, r. Besides r-value, another parameter that is commonly measured in metals testing is the n-value. So what is n-value?
n-value, also known as the strain hardening exponent, is the measure of a metal’s response to cold working. Cold w... | HuggingFaceTB/finemath | |
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#### Approximations and Estimations
• To round off a number means to find an approximate value. To approximate means to round off.
• When rounding off numbers, we round up or round down, depending on the digit to the right of the digit being rounded.
• If the digit to ... | HuggingFaceTB/finemath | |
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# Convert Percents And Decimals Quiz
7 questions
### #1 of 7:Mild
Convert percents and decimals
<p>How would you write `0.61` as a percent?</p>
### #2 of 7:Medium
Convert percents and decimals
<p>How would you write `8%` as a decimal?</p>
### #3 of 7:... | HuggingFaceTB/finemath | |
Greatest Element is Supremum
Theorem
Let $\struct {S, \preceq}$ be an ordered set.
Let $T \subseteq S$.
Let $T$ have a greatest element $M$.
Then $M$ is the supremum of $T$ in $S$.
Proof
Let $M$ be the greatest element of $T$.
Then by definition:
$\forall x \in T: x \preceq M$
By definition of supremum, it is... | open-web-math/open-web-math | |
# Volts to VA – Conversion, Formula, example and table
With this calculator you can convert volts to VA easily, just by entering some basic parameters in the online calculation tool.
To facilitate the understanding of the conversion, some examples of Volt a VA are shown , the formula that must be used, how to perform... | HuggingFaceTB/finemath | |
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# Multiplication and Division of Radicals
## Rationalize the denominator
Estimated10 minsto complete
%
Progre... | HuggingFaceTB/finemath |
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