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# Babies, Birthdays and Bits
This is most definitely going to sound and feel like fallacy for those of you who have not heard this before. It is going to seem mathematically impractical, I must warn you. Come to truly think of it though, how could it be a paradox if it wasn’t at least that much? In this article, I sha... | HuggingFaceTB/finemath | |
# What is maximum energy we can extract from electric field?
I was reading Does Electric field has mass Energy; it gives energy density k stored around an electric charge as $k = \dfrac{q^2}{r^4}$ in skeleton form without any constants.
So, a definite amount of energy is stored around an electric charge. We can extra... | HuggingFaceTB/finemath | |
# algebra
posted by .
I am having a lot of difficulty trying to figure out how to put two math (word problems) questions into an expression. Can someone help me, I can do the rest from there. An explanation on the math formula would be great too.
here's the two questions.
1. The projected number of men and women enr... | HuggingFaceTB/finemath | |
You Are Here: Home » Science » How Many Meters in a Foot
# How Many Meters in a Foot
There are 0.3048 meter in a foot. 1 foot is equal to 0.3048 meters, or 1 meter is equal to 3.28 feet. To convert a measurement from feet to meters, simply divide the value in feet to 0.3048. To convert a value from meters to feet, mu... | HuggingFaceTB/finemath | |
Basic College Mathematics (10th Edition)
$\frac{17}{100}$ 0.17 17%
Fraction $\frac{187}{1100}$ = $\frac{187\div11}{1100\div11}$ = $\frac{17}{100}$ Decimal $187=(x)(1100)$ = $187\div1100=(x)(1100)\div1100$ = $0.17=x$ Percent 0.17 = 17% | HuggingFaceTB/finemath | |
# Video: Writing and Solving Multiplication Linear Equations in a Real-World Context Involving Fractions
A rectangle’s width is one-sixth of its length. Given that the rectangle’s width is 9 inches, determine its length.
02:06
### Video Transcript
A rectangle’s width is one-sixth of its length. Given that the recta... | HuggingFaceTB/finemath | |
Last visit was: 23 Jul 2024, 04:32 It is currently 23 Jul 2024, 04:32
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# Lesson video
In progress...
Hi year six, welcome to our fourth lesson in the decimals and measures topic.
Today, we will be solving problems involving the conversion of length.
All you'll need is a pencil and a piece of paper.
So pause the video and get your equipment, if you haven't done so already.
In today's... | HuggingFaceTB/finemath | |
Question 131
# I and 0 are respectively the in-centre and circumcentre of a triangle ABC. The line AI produced intersects the circumcircle of ΔABC at the point D. If ∠ABC = x°, ∠BID = y° and ∠BOD = z°, then $$\frac{z+x}{y}=$$
Solution
For cicumcentre and its chord BD
$$\angle$$BAD = $$\angle$$BOD/2
=> $$\angle$$BA... | HuggingFaceTB/finemath | |
How many pence in 5 pounds? Here we will show you how to calculate how many pence there are in 5 pounds. (How many 1p in £5?)
Calculating how many pence coins there are in 5 pounds is a two-step process. First, we calculate how many pence there are in one pound. Then, we multiply that result by 5 pounds.
Step 1: The... | HuggingFaceTB/finemath | |
# Absolute value of sine function
This article is about a particular function from a subset of the real numbers to the real numbers. Information about the function, including its domain, range, and key data relating to graphing, differentiation, and integration, is presented in the article.
View a complete list of par... | HuggingFaceTB/finemath | |
# Determinants NCERT Solutions : Class 12 Maths
## NCERT Solutions for Class 12 Maths : Determinants Filter
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Doubtnut one of the best online education platform provides free NCERT Solutions of Maths for Class 12 Determ... | HuggingFaceTB/finemath | |
# Constant Acceleration -- Equation for Vavge
• Danger Mouse
In summary: I had a brain lapse and was trying to solve it algebraically without using the given formulas. I see now that it's quite simple.In summary, we are given the equation Vav = (x-x0)/t and encounter a second expression for Vav that is valid for const... | HuggingFaceTB/finemath | |
# How to solve a^(b^c) % M
I did it using modulo exponentiation like this:
say, f(a,b) returns a^b % m (AC)
Then answer will be f(a,f(b,c)) (WA)
But this method gives WA.
(PS: a,b,c are of order 1e9, m is 1e9+7)
I think a^b^c % M is not equal to (a^(b^c)%M)%M, This is where I might be wrong…
Since a^{p-1} = 1 (... | HuggingFaceTB/finemath | |
# Dealing with negative roots in code
I have an equation in the following form that needs to be solved for $$x$$, with $$x > 0$$ and constants $$a,b,c,d \geq 0$$.
$$\left(\frac{x - a}{b}\right)^2 + \left(\frac{x - c}{d}\right)^2 = 1$$
From the following paper, which i am trying to implement: https://grail.cs.washing... | HuggingFaceTB/finemath | |
Foucault Pendulum
We program equations (6.80) from Knudsen and Hjorth in order to display the motion of the pendulum (at Paris).
The equations were derived under certain simplifying assumptions. It would be interesting to append a solution of the full equations in order to demonstrate that the approximations were jus... | HuggingFaceTB/finemath | |
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# Sequential Design - PowerPoint PPT Presentation
Sequential Design. Part II. Output. A(t+1) =D A = AX + BX. B(t+1) =D B = AX. Y = AX + BX. 2-D State Table. Even Easier, State Diagrams:. Using State Diagrams. What about designing a state machine using J-K Flip Flops. Given this state table. Using J-K Flip Flop... | HuggingFaceTB/finemath | |
## Preliminary Automatics Course
Chapter 19.1 Introduction
Transfer function G(s) gives the output y(t) when input x(t) is known. The simplest is the Proportional unit G(s)=K transfer function. K is a gain and the relation is simply y(t)=K*x(t). Other objects aren’t so easy. We have to consider not x(t) and y(t) time... | HuggingFaceTB/finemath | |
### Home > INT2 > Chapter 11 > Lesson 11.2.1 > Problem11-58
11-58.
Genève is designing a video display for an aircraft instrument panel. One of her design requirements is that it must have full high-definition capability. However, space on the panel is very limited because of the many other critical instruments req... | HuggingFaceTB/finemath | |
SOLVING DIFFERENTIAL EQUATIONS USING MAPLE
then you will learn how to plot the solutions.
Let us first call the Differential Equations package:
> with(DEtools):
>
The derivative of an expression y(t) with respect to "t" is denoted in Maple by diff(y(t), t).
To enter the differential equation ty'+2y=sin(t)/t i... | HuggingFaceTB/finemath | |
Ricci-Flat Metrics
## What is Ricci-Flatness?
A metric on a manifold assigns a length to any curve connecting a pair of points. Two nearby points with separation $dx^i$ ($i=1,2,\ldots,d$) are assigned a distance $ds$ defined by
(1)
\begin{align} ds^2 = g_{ij} \ dx^idx^j \ , \end{align}
where the Einstein summation ... | open-web-math/open-web-math | |
# Math can be fun!
Pinky was having a wonderful time learning Roman numerals. She was enjoying a lot as she was using different letters to represent different numbers. Pinky was very happy until she reached the number one lakh, at this point she suddenly realized that zero was not represented anywhere in Roman numeral... | HuggingFaceTB/finemath | |
# What is x in equation lgx+lg(x+90)=3?
sciencesolve | Certified Educator
You need to convert the sum of logarithms into the logarithm of product, such that:
`log x + log(x + 90) = log (x(x + 90))`
Replacing `log (x(x + 90))` for `log x + log(x + 90)` in equation, yields:
`log (x(x + 90)) = 3`
Since the base of l... | HuggingFaceTB/finemath | |
Total:
\$0.00
# Fractions Song (and music video)
Subjects
1st, 2nd, 3rd, 4th
Resource Types
Product Rating
4.0
File Type
Mpeg-4 Video File
24.3 MB
### PRODUCT DESCRIPTION
Introduce basic fraction concepts with this fun sing-along (including numerator and denominators)!
(this file will play on both windows and mac ... | HuggingFaceTB/finemath | |
# GSEB Solutions Class 7 Maths Chapter 6 The Triangles and Its Properties Ex 6.4
Ā Ā Ā
Gujarat BoardĀ GSEB Textbook Solutions Class 7 Maths Chapter 6 The Triangles and Its Properties Ex 6.4 Textbook Questions and Answers.
## Gujarat Board Textbook Solutions Class 7 Maths Chapter 6 The Triangles and Its Properties Ex... | HuggingFaceTB/finemath | |
# Statistical Inference Algorithm
(Redirected from Statistical inference)
A statistical inference algorithm is an inference algorithm that can be implemented by a statistical inference system (to solve a statistical inference task).
## References
### 2013
• (Wikipedia, 2013) ⇒ http://en.wikipedia.org/wiki/Statisti... | HuggingFaceTB/finemath | |
Lec06.Factorization-Duality-3DTransforms
# Projective space points in 2d point will lie on line
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Unformatted text preview: ons • Displacement Models – – – – – Rigid / Euclide... | HuggingFaceTB/finemath | |
# PROBABILITY BASIC
### TRIAL AND EVENT
Let us consider an experiment, which does not give unique result but results in any one of the several possible outcomes. Then the experiment is called a TRIAL and the possible outcomes are called EVENTS or CASES. For example,
• Tossing of a coin is a trial and getting head or ... | HuggingFaceTB/finemath | |
Explore BrainMass
# interval notation
Not what you're looking for? Search our solutions OR ask your own Custom question.
This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!
1) Solve the following inequality. Write the answer in interval notation. X/X+3 ≤ -2... | HuggingFaceTB/finemath | |
# Horizontal $E$-field for a charged conducting disk
For part of a simulation I am writing, I need to know the electric field emitted from a charged conducting disk. If the disk was laid out in the $x$-$y$ plane, I am interested in the field in that same plane, not vertically.
The method for getting it in the axis of... | HuggingFaceTB/finemath | |
# Closest (or Next) smaller and greater numbers with same number of set bits
• Difficulty Level : Hard
• Last Updated : 09 Sep, 2021
Given a positive integer n, print the next smallest and the previous largest number that has the same number of 1 bit in their binary representation.
Examples:
```Input : n = 5
Output... | HuggingFaceTB/finemath | |
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It is currently 20 Jan 2020, 19:28 ### GMAT Club Daily Prep
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www.wordkun.com/prime-factorization-of/number/20-as-a-product-of-prime-factors
The prime factorization of number 20. Answer: 2 * 2 * 5 The prime factorization of 20 has 3 prime factors. If you multiply all primes in the factorization together then 20=2 * 2 * 5. Prime factors can only have t... | HuggingFaceTB/finemath | |
# Linear programming
Decision making is an important aspect of the Performance Management syllabus, and questions on this topic will be common. The range of possible questions is considerable, but this article will focus on only one: linear programming
The ideas presented in this article are based on a simple example... | HuggingFaceTB/finemath | |
<img src="https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=iA1Pi1a8Dy00ym" style="display:none" height="1" width="1" alt="" />
# Whole Number Exponents
## Distinguish bases and powers.
Estimated5 minsto complete
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Progress
Practice Whole Number Exponents
Progress
Estimated5 minsto complete
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Whole Number Expone... | HuggingFaceTB/finemath | |
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###### Norm Prokup
Cornell University
PhD. in Mathematics
Norm was 4th at the 2004 USA Weightlifting Nationals! He still trains and competes occasionally, despite his busy schedule.
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# Transforming the Graphs of Sine and Cos... | HuggingFaceTB/finemath | |
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Principal component analysis, sometimes known as principal components analysis, is a powerful statistical tool for condensing large data sets into more easily readable tables while preserving key information. It is a versatile tool widely adopted by businesses to turn complex data into manageable formats, simplify the ... | HuggingFaceTB/finemath | |
# Learning tables: 6x, 7x, 8x, 9x and 10x tables pg 2
This is the second page for tables 6 to 10. The idea is to fill in the grid as quickly as possible. The tens are easy, although never suggest that ‘add a naught’ will give the correct answer! The nines are interesting in that the digits have a digital root of 9 whe... | HuggingFaceTB/finemath | |
# Integral of t/1+t^2
hello there,im having trouble with this question..
find int t/1+t^2 dt
my answer is 1/2 ln t (1+t^2)+c
but the answer that i have copy is 1/2 ln (1+t^2)+c
maybe i have copy it wrongly,can someone tell me which one is right?
thx..
Related Calculus and Beyond Homework Help News on Phys.org
exk
i... | HuggingFaceTB/finemath | |
ENCYCLOPEDIA 4U .com
Web Encyclopedia4u.com
# Scientific notation
Scientific notation (standard index notation) is a concise way of recording numbers by integer powers of ten, that is used to record numbers which are notably large or small. Such notation is used to record physical quantities without including trail... | HuggingFaceTB/finemath | |
# Statics: Bending of a beam/evenly distributed force problem
• hattori_hanzo
In summary, the conversation is about a statics problem involving finding the largest bending stress in two incisions. The solution involves using the formula Mb = FA*aA-q*2.5m*1.25, but the person is confused about where the 1.25 comes from... | HuggingFaceTB/finemath | |
$\require{cancel}\newcommand\degree[0]{^{\circ}} \newcommand\Ccancel[2][black]{\renewcommand\CancelColor{\color{#1}}\cancel{#2}} \newcommand{\alert}[1]{\boldsymbol{\color{magenta}{#1}}} \newcommand{\blert}[1]{\boldsymbol{\color{blue}{#1}}} \newcommand{\bluetext}[1]{\color{blue}{#1}} \delimitershortfall-1sp \newcommand\... | HuggingFaceTB/finemath | |
# Graph algorithms¶
Vermouth describes molecules and molecular fragments as graphs where atoms are nodes and connections between them (e.g. bonds) are edges. This allows us to use the connectivity to identify which atom is which, meaning we are no longer dependent on atom names.
## Definitions¶
### Graph¶
A graph $... | HuggingFaceTB/finemath | |
## HowMany.wiki
Please get in touch with us if you:
1. Have any suggestions
2. Have any questions
3. Have found an error/bug
4. Anything else ...
# How many square feet in 8 square miles?
8 square miles equals 2.23027×108 square feet because 8 times 2.78784×107 (the conversion factor) = 2.23027×108
## All In One U... | HuggingFaceTB/finemath | |
# 2D Transformation
Transformation means changing some graphics into something else by applying rules. We can have various types of transformations such as translation, scaling up or down, rotation, shearing, etc. When a transformation takes place on a 2D plane, it is called 2D transformation.
Transformations play an... | HuggingFaceTB/finemath | |
sampletest2
# sampletest2 - a + ib . Remember what e a + ib x means. In...
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MAP 2302 Second Exam (Sample) Time allowed: 55 minutes 1. Solve the initial value problems (a) y ±± + 2 y ± + 17 y = 0 , y (0) = 1 ,y ± (0) = - 1 . (b) y ±± - 4 y ± + 4 y = 0 , y... | HuggingFaceTB/finemath | |
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# Slope-intercept equation from graph
Learn to write equations in slope-intercept form for three d... | HuggingFaceTB/finemath | |
×
Puzzling Electromagnetism
And now, I post a question for all those people here who love the subject of electromagnetism. Well, undergraduates and post-graduates can easily answer this question, but I want school students to mull over it.
Let us consider an idealized straight conductor wire carrying current. Also l... | open-web-math/open-web-math | |
# Stat chapter 2
Home > Preview
The flashcards below were created by user maryfae on FreezingBlue Flashcards.
1. bimodal
a distribution that has two values that have the highest frequency of scores
2. distribution
a collection, or group, of scores from a sample on a single variable. Often, but not necessarily, these... | HuggingFaceTB/finemath | |
# Uniform Circular Motion and Its Myths
Uniform circular motion occurs when the movement of an object is along the circumference of a circle or rotation along a circular path at a constant rate of turn. For example, any point on a propeller spinning at a constant rate is executing uniform circular motion. Other exampl... | HuggingFaceTB/finemath | |
# Matt's arXiv selection: week ending 3 October 2008
From: Matthew Davis <mdavis_at_physics.uq.edu.au>
Date: Tue, 14 Oct 2008 07:47:19 +1000
The following message was sent to the matts_arxiv list by Matthew Davis <mdavis_at_physics.uq.edu.au>
Hi all,
This week there were 22 new preprints and 10 replacements.
-----... | open-web-math/open-web-math | |
# 12h - MIDTERM When Monday February 8 regular time 2:30...
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MIDTERM When: Monday, February 8, regular time 2:30 Where: Here Topics covered: - Propositional logic - Predicates and quantifiers - Sets and set operations Midterm will include problems on prop... | HuggingFaceTB/finemath | |
Cody
# Problem 2057. persistant sum
Solution 371996
Submitted on 18 Dec 2013 by Crapoo Crapoo
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
%% T1 n=[1259,1]; m=mod(n(1),n(2))+1; s=n(1)*(m+1)+m; a... | HuggingFaceTB/finemath | |
# One to One Function
A one to one function is a relation that preserves “distinctness”; Every unique member of the domain is mapped to a unique member of its range. Sometimes this type of mapping is called injective.
Both images below show injective functions. Notice that each element in X is mapped to a distinct el... | HuggingFaceTB/finemath | |
# rommudoh's solution
## to Sum Of Multiples in the Elm Track
Published at Apr 25 2019 · 0 comments
Instructions
Test suite
Solution
Given a number, find the sum of all the unique multiples of particular numbers up to but not including that number.
If we list all the natural numbers below 20 that are multiples of 3... | HuggingFaceTB/finemath | |
Q) According to Henry David Thoreau, the reason a majority : GMAT Sentence Correction (SC) - Page 2
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### GMAT Club Daily Prep
#### Thank you for using the timer - this advanced tool can... | HuggingFaceTB/finemath | |
# Charging a Capacitor with Another Capacitor
• breez
In summary, the conversation discusses the writing of a differential equation to find the charge on a 4 microF capacitor as a function of time, as well as clarifying a typo in the given circuit diagram. The conversation also touches on the arrangement of the capaci... | HuggingFaceTB/finemath | |
# For $a,b$ coprime, there exists positive integers $x,y$ such that $ax-by=1$
The problem statement is: for $$a,b$$ coprime, prove that there exists positive integers $$x,y$$ such that $$ax-by=1$$. The question is form Arthur Egnels' problem solving text, and from the chapter on the pigeonhole principle.
My question:... | HuggingFaceTB/finemath | |
## What’s in the future value calculation?
We may use the future value calculator to compute the future value (FV) of an investment given the compounding term (N), interest/yield rate (I/Y), beginning amount, and monthly deposit/annuity payment per period inputs (PMT). The future value of a savings amount or investmen... | HuggingFaceTB/finemath | |
# Showing that a Gamma distribution converges to a Normal distribution
Consider $$G = \operatorname{Gamma}(p)$$. As $$p$$ goes to $$\infty$$, the Gamma becomes more and more bell-shaped. How do I show that $$\frac{G - p}{\sqrt{p}} \to Z \sim N(0,1)$$ as $$p \to \infty$$?
I started with the CDF of the Gamma and began ... | HuggingFaceTB/finemath | |
# SPL Programming - 2.2 [Doing judgement] Branching structure
We can make some judgments with the if() function, but in some cases, we need the if statement.
Let’s review the quadratic equation `ax^2^+bx+c=0` we learned in middle school. We can use the formula `x=(-b±√(b^2^-4ac))/2a` to find the solutions, but we nee... | HuggingFaceTB/finemath | |
464025 (number)
464,025 (four hundred sixty-four thousand twenty-five) is an odd six-digits composite number following 464024 and preceding 464026. In scientific notation, it is written as 4.64025 × 105. The sum of its digits is 21. It has a total of 5 prime factors and 24 positive divisors. There are 235,840 positive... | HuggingFaceTB/finemath | |
# Topic: Ray Optics and Optical Instruments (Test 1)
Topic: Ray Optics and Optical Instruments
Q.1
Light rays from a point object
A. radiate only to the side
B. radiate in all directions
C. radiate only at the front
D. radiate in some lines
Answer : Option B
Explaination / Solution:
No Explaination.
Workspace
Report
... | HuggingFaceTB/finemath | |
## (solution) I need serious help with this homework. I don't understand the
I need serious help with this homework. I don't understand the logic.
Type your name here------>
Points earned --> 50 Read the instructions and hints before attempting to complete the solution. Enter your responses and answers in the... | HuggingFaceTB/finemath | |
# How do you find the volume bounded by y^2=x^3 and y=x^2 revolved about the y-axis?
Jun 10, 2018
$\frac{\pi}{20}$ units ^3
#### Explanation:
We need to find where these two curves intersect to find the bounds of integration.
${y}^{2} = {x}^{3} \mathmr{and} y = {x}^{2}$, squaring the second expression, ${y}^{2} = ... | HuggingFaceTB/finemath | |
# Homework Help: Initial value problem (Laplace)
1. Jul 11, 2008
### math_04
1. The problem statement, all variables and given/known data
Use the Laplace transform method to solve the differential equation
y" -4y' +4y = e^2t subject to initial conditions y(0)=1, y'(0)=0
2. Relevant equations
3. The attempt at a ... | HuggingFaceTB/finemath | |
# Is John Guilty
## Objective
SWBAT determine the angular and linear speed of a moving object
#### Big Idea
By analyzing data from an accident students will determine whether a driver was speeding when he wrecked his vehicle.
## Teacher Notes
1 minutes
Today's activity lends itself to putting names of local stud... | HuggingFaceTB/finemath | |
9. Sequences And Series
Sequences And Series
Complete Syllabus of Class 11 Maths Chapter 9 Sequences and Series:
NCERT Exercise 9.1
NCERT Exercise 9.2
NCERT Exercise 9.3
NCERT Exercise 9.4
NCERT Miscellaneous Exercise
Main Website: https://www.ashishkumarletslearn.com
Subject Language: ENGLISH Explanation
Lan... | HuggingFaceTB/finemath | |
# Impulse
In the previous sections analyzed systems that were isolated so we knew that the total momentum of the system could not change. Now we would like to analyze systems that are not isolated, meaning they do feel a net external force. For example, the individual components of the larger systems are just smaller ... | HuggingFaceTB/finemath | |
I need help., writing these into function form..
1.) -7x=y=1
2) -4x-2y=-1
3) 6x-5y=1
4) -6x-9y=0
5) -4x+2y=8
and how you figured out how to write it in function form.
1)
You have a typo here.
2)
-4x - 2y = -1
-4x + 1 = 2y
2y = -4x + 1
y = -2x + (1/2)
f(x) = -2x + (1/2)
3)
6x - 5y = 1
5y = 6x - 1
y = (6/5)x ... | HuggingFaceTB/finemath | |
# A body of 20 kg is lying at rest. Under the action of a constant force, it gains a speed of 7 m/s. The work done by the force will be _______.
1. 490J
2. 500J
3. 390J
4. 430J
Option 1 : 490J
Free
RRC Group D Full Mock Test
370604
100 Questions 100 Marks 90 Mins
## Detailed Solution
CONCEPT:
• Work-energy theorem... | HuggingFaceTB/finemath | |
Associated Topics || Dr. Math Home || Search Dr. Math
### Tangent Function and the Unit Circle
```Date: 06/06/2002 at 06:43:05
From: Andy
Subject: Trigonometric Functions and the Unit Circle
Hi Dr. Math,
I have a question regarding a response in your archive:
Trigonometric Functions and the Unit Circle
http://math... | HuggingFaceTB/finemath | |
# Which measure of center is best??
Author:
KevinBu
## Sam's Test Scores
Consider the Mean. a) How many data values are less than the mean b) How many data values are greater than the mean?
Do you believe that the mean is a good measure of the center of Sam's Test scores? Explain your answer.
Consider the Median. ... | HuggingFaceTB/finemath | |
BrainDen.com - Brain Teasers
• 0
# (n3+1)/(mn-1)
## Question
Find all pairs of positive integers m and n such that (n3+1) / (mn-1) is an integer, and prove you've identified them all.
This was a problem I solved back in high school with a proof that could barely fit on one page, written front and back, with small h... | HuggingFaceTB/finemath | |
# 31880 (number)
31880 is an even five-digits composite number following 31879 and preceding 31881. In scientific notation, it is written as 3.188 × 104. The sum of its digits is 20. It has a total of 5 prime factors and 16 positive divisors. There are 12,736 positive integers (up to 31880) that are relatively prime t... | HuggingFaceTB/finemath | |
# Tag Info
54
This does not directly concern the $\infty+1=\infty$ issue and I am not certain that I understand what you mean by his previous understanding of mathematics, but I wanted to give the following suggestion: Ask your child to name the biggest number he knows (besides $\infty$). (Let's say he answers $1000$... | HuggingFaceTB/finemath | |
# A three-phase induction motor with eight poles runs from a three-phase supply of 50 Hz. What is the synchronous speed of the motor?
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in General
closed
A three-phase induction motor with eight poles runs from a three-phase supply of 50 Hz. What is the synchronous speed of the motor?
1. 3000 rpm
2. 1500 rpm
3.... | HuggingFaceTB/finemath | |
## How I Lost My Faith In Mathematics
I like to read math books and work math problems while I have lunch in my office. I tried to solve this problem from The Contest Problem Book IV . Problem 35 1973 Examination The Contest Problem Book IV
Since I didn’t make much progress save noticing the implicit decagon, I chec... | HuggingFaceTB/finemath | |
Cody
# Problem 1072. Television Screen Dimensions
Solution 1853343
Submitted on 19 Jun 2019 by David Hill
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
[W,H]=teledims(2.4,1,46); assert(H == 17.7 ... | HuggingFaceTB/finemath | |
# 14% of 640000
What is 14 percent of 640000? What is 640000 plus 14% and 640000 minus 14%?
14% of 640000 = 89600 640000 + 14% = 729600 640000 − 14% = 550400
Calculate online:
% of
Percent formula to figure out percentages:
640000 ⋅ 14 ÷ 100 = 89600.
So, we got a discount percentage of 89600. If the price was 6... | HuggingFaceTB/finemath | |
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# Valentine's Day Hearts Coloring Activity - One-Step Inequalities (Two Options)
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Valentine's Day Hearts Coloring Activity - One-Step Inequalities (Two Options)
Choose from one-step inequalities with ONLY posi... | HuggingFaceTB/finemath | |
# Confidence interval from p value
The question is: given that $$H_0: \mu=34, H_a:\mu<34$$ gives p-value $$p$$, find the largest confidence level, $$c$$, that does not include $$34$$.
The answer does this:$$1-2p=c$$ But I do t understand this. I have gotten this far:
$$p=P(x<\bar x)$$ if $$\mu=34$$ and $$\sigma \app... | HuggingFaceTB/finemath | |
# June 2012 Archives
## Wordles of Blues Tags in a music genre dataset
After labeling the Blues portion of this music genre dataset (of 100 excerpts I still have yet to identify 4), I extracted the last.fm tags people have applied to the songs, along with their "counts" --- whatever that means (it is a number from (0... | open-web-math/open-web-math | |
Normal distrubution
Homework Statement
The door frames used by a builder are of one standard height, 1.83m. The heights of men are normally distributed with mean 1.73m and standard deviation 0.064m.
The door frames are to be used in a department store. It is known that women outnumber men in the ratio 19:1 in the sto... | HuggingFaceTB/finemath | |
# Percentage Change
Percentages will appear at some point during your GCSE maths exam. You will normally be asked to find a percentage of an amount and then either increase or decrease the amount by that percentage. You could also be asked to work out by what percentage an amount has changed.
Example Question
a... | HuggingFaceTB/finemath | |
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# m345t1S11-1 - MA 345 Dierential Equations Name Spring 2011...
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MA 345 Di ff erential Equations Spring 2011 Exam I Dr. E. Jacobs Name : Score : Problems 1 - 5 require that you show all w... | HuggingFaceTB/finemath | |
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# The shielding constant for ${}_{30}Zn$ is:A) 25.65B) 15.65C)25.35D) 10.35
Last updated date: 12th Sep 2024
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Hint: Slater's rule is used to calculate shielding constant.
Formula used- $... | HuggingFaceTB/finemath | |
##### Notes
This printable reviews the place value Common Core Mathematics Standards for the Grade 5 Number & Operations in Base Ten domain.
##### Print Instructions
NOTE: Only your test content will print.
To preview this test, click on the File menu and select Print Preview.
See our guide on How To Change Browser... | HuggingFaceTB/finemath | |
Q. 34.5( 15 Votes )
# Simplify the foll
Answer :
By using the distributive law
(i) (2xy – xy)(3xy – 5)
= 2xy (3xy – 5) –xy (3xy –5)
= 6x2y2 –10xy – 3x2y2 +5xy
= 3x2y2 – 5xy (after adding and subtracting the like terns)
(ii) (3xy2 + 1)(4xy – 6xy2)
By using the distributive law
3xy2 ((4xy – 6xy2) +1((4xy – 6xy2... | HuggingFaceTB/finemath | |
# Answers
Solutions by everydaycalculation.com
## Subtract 14/16 from 5/35
5/35 - 14/16 is -41/56.
#### Steps for subtracting fractions
1. Find the least common denominator or LCM of the two denominators:
LCM of 35 and 16 is 560
2. For the 1st fraction, since 35 × 16 = 560,
5/35 = 5 × 16/35 × 16 = 80/560
3. Likewi... | HuggingFaceTB/finemath | |
# 5.04 Time series data in tables
Lesson
### Finding missing values in time series data tables
It is often convenient to present time series data in tabular form. We have two different ways to smooth data to remove the peaks and troughs and see the underlying trend. We can use a moving average or we can deseasonali... | HuggingFaceTB/finemath | |
# SOLUTION: My denominator is 6 times my numerator. The sum of my numerator and denominator is14. Waft fraction am I?
Algebra -> Percentage-and-ratio-word-problems -> SOLUTION: My denominator is 6 times my numerator. The sum of my numerator and denominator is14. Waft fraction am I? Log On
Ad: Mathway solves al... | HuggingFaceTB/finemath | |
My Math Forum Piecewise constant function on my Ti-84
Calculus Calculus Math Forum
April 6th, 2011, 04:38 AM #1 Newbie Joined: Apr 2011 Posts: 2 Thanks: 0 Piecewise constant function on my Ti-84 Today in class, we've talked about limits and the continuity of functions and this was an example: f(x)={ |x-1| if x<2 ... | HuggingFaceTB/finemath | |
# How To Find Test Statistic?
## What is the formula for the test statistic?
Standardized test statistics are used in hypothesis testing.
The general formula formula is: Standardized test statistic: (statistic-parameter)/(standard deviation of the statistic).
The formula by itself doesn’t mean much, unless you also... | HuggingFaceTB/finemath | |
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T test for mean annual income
Past records suggest that the mean annual income,m1 , of teachers in state of Connecticut is less than or equal to the mean annual income,m2 , of teachers in California. In a current study, a random sample of 25 teachers from Connecticut and an independent random ... | HuggingFaceTB/finemath | |
## Thursday, July 31, 2008
### Forward: 一天變出二十五小時 (25 hours a day)
http://www.cw.com.tw/article/index.jsp?id=34895
• 考慮太多，優柔寡斷
• 完美主義
• 害怕失敗
• 挑簡單、喜歡的先做
## Friday, July 11, 2008
### Approximating the graph by empty graphs
Note that the Regularity Lemma is only meaningful for dense graphs, because for sparse graph... | HuggingFaceTB/finemath | |
Chapter 11: Functions
# 11.1 Function Notation
There is a special classification of mathematical relationships known as functions. So far, you will have unknowingly worked with many functions, where the defining characteristic is that functions have at most one output for any input. Properties of addition, subtractio... | open-web-math/open-web-math |
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