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# math
posted by .
There is a rectangular piece of land that measures 40ft by 70 ft in the middle there is a square sandbox that is 6 ft on each side the rest of the land is covered in grass what percent of the land is covered by grass rounded to the nearest tenth of a percent?0.98 %= 0.99%
• math -
40 x 70 = 2800 ... | HuggingFaceTB/finemath | |
# How to Calculate 5/9 Divided by 7/9
Are you looking to work out and calculate how to divide 5/9 by 7/9? In this really simple guide, we'll teach you exactly what 5/9 ÷ 7/9 is and walk you through the step-by-process of how to divide fractions.
Before we dive into the calculation, let's recap on some fraction basics... | HuggingFaceTB/finemath | |
## Topic: Geometry & Shapes
Free Printable Worksheets on Geometry and Shapes
## Geomety: 2D Shapes – Count the Sides (Hexagon) This shapes worksheet is from the book, “Mastering the Math Milestone“. This worksheet has the child count sides and vertices, write that number and then trace and write the...
## Shapes and... | HuggingFaceTB/finemath | |
# Distributive Property - A Converse Theorem
Suppose that $\ast$ distributes over $+$, where $0$ is the additive identity. We can conclude the following.
$a \ast b = a \ast \left( b + 0\right)$
$a \ast b = a \ast b + a \ast 0$
$\therefore a \ast 0 = 0$
In other words, the additive identity and multiplicative 'anni... | HuggingFaceTB/finemath | |
1 / 6
# Cycling Speed and Breathing Rate
This example demonstrates how to determine the breathing rate of a cyclist based on different cycling speeds. The data is analyzed to determine if it can be modeled by a linear, exponential, or quadratic function.
## Cycling Speed and Breathing Rate
E N D
### Presentation T... | HuggingFaceTB/finemath | |
#### What is 91 percent of 550?
How much is 91 percent of 550? Use the calculator below to calculate a percentage, either as a percentage of a number, such as 91% of 550 or the percentage of 2 numbers. Change the numbers to calculate different amounts. Simply type into the input boxes and the answer will update.
## 9... | HuggingFaceTB/finemath | |
# Count subarrays with non-zero sum in the given Array
• Difficulty Level : Hard
• Last Updated : 13 Aug, 2021
Given an array arr[] of size N, the task is to count the total number of subarrays for the given array arr[] which have a non-zero-sum.
Examples:
Input: arr[] = {-2, 2, -3}
Output:
Explanation:
The subarray... | HuggingFaceTB/finemath | |
# Integration and hyperbolic function problem
• JD_PM
In summary: We make the substitution,$$u^2=a^3(\frac{\beta_0}{\Gamma_0})$$$$da=\frac{2}{3}(\frac{\Gamma_0}{\beta_0})^{\frac{1}{3}}\frac{du}{u^{\frac{1}{3}}}$$thus,$$\frac{2}{3}\frac{1}{\sqrt {\beta_0}}\int \frac{du}{\sqrt {1+u^2}}=t$$$$\sinh^{-1}(u)=\frac{ JD_PM Ho... | HuggingFaceTB/finemath | |
MA 3110 MA3110 Final Exam Answers (ITT TECH University)
soffix
• \$14.99
MA3110 Final exam (ITT TECH)
1. On average, a doctor will treat between 0 and 5 patients a day. The random variable x represents the number of patients treated on a given day.
This probability distribution results in a mean score of approxima... | HuggingFaceTB/finemath | |
### A problem asked by Himanshu Sharma
Evaluate $\int \frac{2x+5}{(x+1)(x+2)(x+3)(x+4)+9} \; dx$
$(x+1)(x+2)(x+3)(x+4)+9$
$=(x^2 + 5x + 6)(x^2 + 5x + 4) + 9$
Substitute $u = x^2 + 5x + 5$ and $du = (2x + 5)\; dx$
And, we have
$\int \frac{2x+5}{(x+1)(x+2)(x+3)(x+4)+9} \; dx$
$=\int \frac{du}{(u+1)(u-1)+9}$
$=\in... | HuggingFaceTB/finemath | |
Q:
# How do you convert DMS to a decimal?
A:
To convert degrees, minutes and seconds (DMS) to decimal format, use the whole number provided for degrees and add a decimal point. Then divide the minutes by 60 and the seconds by 3600 and add these two numbers together to get the remaining portion. Expressed as a formul... | HuggingFaceTB/finemath | |
# Monotonicity of $f(n)= \frac{1}{n} \sum_{i=1}^{n-1} \frac{1}{i}$
Define $f: \mathbb{N} \rightarrow \mathbb{R}$ as $f(n)= \frac{1}{n} \sum_{i=1}^{n-1} \frac{1}{i}$.
I was wondering how to tell if $f$ is a increasing or decreasing function?
Thanks and regards!
-
You are taking the average of things that keep gettin... | HuggingFaceTB/finemath | |
### 6 Examples of different reductions
#### 6.1 Deep point source maps
Many deep SCUBA-2 observations are designed to detect unresolved point sources. In this example we work through the reduction of a cosmology survey, in which targets are high-redshift star-forming galaxies (although the procedure is applicable to ... | open-web-math/open-web-math | |
# Palka 14933
Palka Ball costs a total of € 1.10
A pen costs one euro more than a ball.
How much is the ball?
l = 0.05 Eur
### Step-by-step explanation:
p+l=1.10
p=1+l
l+p = 1.1
l-p = -1
Row 2 - Row 1 → Row 2
l+p = 1.1
-2p = -2.1
p = -2.1/-2 = 1.05
l = 1.1-p = 1.1-1.05 = 0.05
l = 1/20 = 0.05
p = 21/20 = 1.05
... | HuggingFaceTB/finemath | |
# Tony Sparano: Not One for Counting or Brilliant Mathematician?
Here at the Sports Analysis Collective, we often do some pretty complex analysis. However, this post is about something at which this guy excels. One thing that has always interested me is a coach’s decision of when to go for two. Historically, two-po... | HuggingFaceTB/finemath | |
Flat 50% Off on Assignment Bookings
# Everything about Statistics to Solve the Unsolved Riddles of Your Mind!
October 23, 2019
##### Author : Bill
There is a deep connection between statistics and our daily life. From morning to night whatever we do, see, feel or experience is interlinked to statistics in some or ot... | HuggingFaceTB/finemath | |
# Calculating the Consumer Surplus as an Area
The sum of individual consumer surpluses is the total consumer surplus, shown on a graph as the area below the market demand curve and above the market price.
Consumer surplus is the difference between how much a consumer is willing to pay for something and the actual pri... | HuggingFaceTB/finemath | |
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# How do you know when to use the ambiguous case when finding possible lengths of triangles?
Last updated date: 24th Jun 2024
Total views: 375.3k
Views today: 7.75k
Verified
375.3k+ views
Hint: In this question, we have to find when to use the am... | HuggingFaceTB/finemath | |
Search a number
BaseRepresentation
bin1010111000001111110101
312100212222022
422320033311
51212224304
6141042525
733145241
oct12701765
95325868
102851829
111678692
12b56445
1378b096
14543421
153b4ebe
hex2b83f5
2851829 has 2 divisors, whose sum is σ = 2851830. Its totient is φ = 2851828.
The previous prime is 2851817.... | HuggingFaceTB/finemath | |
# What is the compound interest on $23368 at 11% over 29 years? If you want to invest$23,368 over 29 years, and you expect it will earn 11.00% in annual interest, your investment will have grown to become $481,934.40. If you're on this page, you probably already know what compound interest is and how a sum of money can... | HuggingFaceTB/finemath | |
# N Choose 2 is the Sum of the First N-1 Integers
Problem: Determine an arithmetic expression for $\binom{n}{2}$.
Solution: The following picture describes a bijection between the set of yellow dots and the set of pairs of purple dots: In particular, selecting any yellow dots and travelling downward along diagonals g... | HuggingFaceTB/finemath | |
# Why is the left inverse of a matrix equal to the right inverse? [duplicate]
Given a square matrix $A$ that has full row rank we know that the matrix is invertible. So there is a matrix $B$ such that
$$AB=1$$
writing this in component notation,
$$A_{ij}B_{jk}=\delta_{ik}$$
Now, we tend to write $A^{-1}$ instead o... | HuggingFaceTB/finemath | |
Question
# Question 3. When 14 is written with denominator as 12, its numerator is (a) 3 (b) 8 (c) 24 (d) 12
Open in App
Solution
## (a) Given fraction = 14 In order to make the denominator as 12, we will multiply the denominator by 3 and we will also multiply the numerator by 3, to find the equivalent fraction.... | HuggingFaceTB/finemath | |
# One-time pad
(Redirected from One time pad)
Jump to navigation Jump to search
A format of one-time pad used by the U.S. National Security Agency, code named DIANA. The table on the right is an aid for converting between plaintext and ciphertext using the characters at left as the key.
In cryptography, the one-time ... | open-web-math/open-web-math | |
# CALC -- integrals!
posted by .
Iodine-131 is used to treat hypo-thyroidism since it is preferentially absorbed by the thyroid and typically involves a total radiation dosage of 10,000,000 millirem. Iodine-131 has a half-life of eight days.
1. Set up the appropriate integral to represent the radiation dosage delive... | HuggingFaceTB/finemath | |
Meteorologist Ray Petelin is back with another home science lesson!
PITTSBURGH (KDKA) — We have discussed gravity in a couple different experiments. This time, I am going to show you something that may seem almost impossible to do. Then we will discuss how it works, then I am going to show you how to do it. It all has... | HuggingFaceTB/finemath | |
# When Purchases Differ From Usage
The discussion and illustration for direct material variances presumed that all of the raw material purchases were put into production. If this were not a valid assumption, then the preceding illustration would need to be modified to reflect price variances based on the amount purcha... | HuggingFaceTB/finemath | |
3.6 - The polynomial P(x)=3(x5)3(x3)(x+2) has degree... Ch. 3.2 - Factor the polynomial and use the factored form to... Ch. 3.7 - The Doppler Effect As a train moves toward an... Ch. Use the Leading Coefficient Test to find the end behavior of the graph of a given polynomial function. Plus, you’ll have access to millio... | HuggingFaceTB/finemath | |
### Become an OU student
Introduction to complex analysis
Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.
# 2.1 The Cauchy–Riemann theorems
Here we will explore the relationship between complex differe... | HuggingFaceTB/finemath | |
# Question a4bc2
Jun 24, 2015
I found $500 N$
#### Explanation:
Considering that the weight of the astronaut is given as:
$W = 700 N = {m}_{a} \cdot g = {m}_{a} \cdot \left[G \cdot {m}_{e a r t h} / {R}_{e a r t h}^{2}\right]$ where:
$G$ is the Universal Gravitational Constant:
${R}_{e a r t h}$ is the earth's radi... | HuggingFaceTB/finemath | |
# Decimals
In this unit you’ll learn how to do everything with decimals.
Multiplying Decimals- When you multiply decimals, you multiply as if there are no decimals, but you remember how many numbers are behind the decimal. In the problem 1.7 x 2.9, there are two numbers behind the decimal. After you remember how many... | HuggingFaceTB/finemath | |
Assignment 3 - JBP030 (Fall 2017)¶
Note: You should always justify your answers. Whenever you are asked to describe an algorithm, you should present three things: the algorithm, a proof of its correctness, and a derivation of its running time.
Exercise 1 [5 points]¶
Suppose you want to make statements of the form "I... | HuggingFaceTB/finemath | |
## CPF Interest Calculation ### How To Maximize CPF Interest?
When is the best time to do a one time repayment to your CPF?
CPF Interest Calculation is based on the Lowest amount in your CPF account of the month.
Therefore, the best time to do repayment is after your monthly CPF contribution.
If the money is deducte... | HuggingFaceTB/finemath | |
# 400kJ of work is exerted to reduce a car's velocity
1. Apr 14, 2016
### WannabeEngineer
Problem Statement: 4*10^5 Joules of work is required to reduce a car's velocity from 30m/s to 15m/s. What is the car's mass?
Relevant equations: Ke=.5*m*v^2
The attempt at a solution:
V1 = 30m/s
V2 = 15m/s
M = mass of car
.... | HuggingFaceTB/finemath | |
1,323 views
Given the statement : "Men who are intelligent have knowledge."
What is the correct representation of the statement in first-order predicate calculus?
1. $\forall x$ man $(x) \wedge$ intelligent $(x) \rightarrow \exists y$ knowledge $(y) \wedge$ have knowledge $(x, y)$.
2. $\forall x \exists y$ man $(x) ... | HuggingFaceTB/finemath | |
GCSE Maths Ratio and Proportion Proportion
Directly Proportional Graph
# Directly Proportional Graphs / Inversely Proportional Graphs
Here we will learn about directly proportional graphs and inversely proportional graphs, including what proportion graphs are and how to interpret them.
There are also directly propo... | HuggingFaceTB/finemath | |
# Control System – State Space Model
In my previous post we have seen that the state space model of a Linear Time-Invariant (LTI) system is represented as,
(t) = A x(t) + B x(t) ,
y(t) = Cx(t) + D u(t)
Now we have a different representation of state model:
• Forming state model by physical variables
• Formin... | HuggingFaceTB/finemath | |
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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• Index
• » Help Me !
• » Antiderivative problem...should be pretty easy
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## Topic review (newest first)
irspow
2005-11-... | HuggingFaceTB/finemath | |
# Thread: find derivatives "the long way" (using limits)
1. ## find derivatives "the long way" (using limits)
My quiz on Monday requires us to do the long way of finding derivatives, using:
. . . . .f'(x) = lim<sub>h->0</sub> [f(x + h) - f(x)] / h
I used the limit for the equation y = x<sup>3</sup> - 9. I know the ... | HuggingFaceTB/finemath | |
Home > Error Propagation > Propagation Of Error Uncertainty
# Propagation Of Error Uncertainty
## Contents
We are looking for (∆V/V). Sometimes, these terms are omitted from the formula. Retrieved 3 October 2012. ^ Clifford, A. In lab, graphs are often used where LoggerPro software calculates uncertainties in slope ... | HuggingFaceTB/finemath | |
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## Overall voltage gain of the common-emitter amplifier Sol... | HuggingFaceTB/finemath | |
kmmiles.com
Search
# 391215 miles in km
## Result
391215 miles equals 629464.935 km
You can also convert 391215 mph to km.
## Conversion formula
Multiply the amount of miles by the conversion factor to get the result in km:
391215 mi × 1.609 = 629464.935 km
## How to convert 391215 miles to km?
The conversion... | HuggingFaceTB/finemath | |
Programming Course in C# ¡Free!
# Complex numbers
Proposed exercise
A complex number has two parts: the real part and the imaginary part. In a number such as a+bi (2-3i, for example) the real part would be "a" (2) and the imaginary part would be "b" (-3).
Create a class ComplexNumber with:
• A constructor to set ... | HuggingFaceTB/finemath | |
Get Started by Finding a Local Center
Results based on location:
Ashburn 0.93 mi
43330 Junction Plaza
#160
Ashburn, VA 20147
Sterling 4.07 mi
44 Pidgeon Hill Drive
#100
Sterling, VA 20165
# Fun Ways to Celebrate Pi Day (3.14)
Mar 14, 2022 | Location Lake Country
Why do we make such a big deal out of pi? Because pi i... | HuggingFaceTB/finemath | |
# I need to find the obtuse angle between the following two lines
I need to find the obtuse angle between two lines but I am not sure how to code it.
my two angles are 𝑥+√3𝑦=1 and (1−√3)𝑥+(1+√3)𝑦=8
I already did the calculations but im just not sure how to implement it, any help would be greatly appreciated.
Sp... | HuggingFaceTB/finemath | |
# How to Calculate Industrial Fan Power
Author Info
Updated: September 18, 2019
Being able to properly calculate fan power is important for many different applications, whether you are calculating the power of an industrial fan or a household fan. When calculating this, you will be able to determine the power that a... | HuggingFaceTB/finemath | |
Following are some items relating to special numbers discussed in the history of mathematics.
Perfect Numbers Square Numbers The Nature of Prime Numbers Amicable Numbers The Golden Ratio Animals and Numbers Ideal and Irational Numbers Fibonacci Numbers The History of Zero Perfect Numbers
The Pythagoreans produced a ... | HuggingFaceTB/finemath | |
# 8.6 Lasers (Page 2/9)
Page 2 / 9
A CD player uses a laser to read this digital information. Laser light is suited to this purpose, because coherent light can be focused onto an incredibly small spot and therefore distinguish between bumps and pits in the CD. After processing by player components (including a diff... | open-web-math/open-web-math | |
0%
# Problem 443
GCD sequence
Let g(n) be a sequence defined as follows:
g(4) = 13,
g(n) = g(n-1) + gcd(n, g(n-1)), for n > 4.
The first few values are:
n 10 11 12 13 14 15 16 17 18 19 20
g(n) 13 14 16 17 18 27 28 29 30 31 32 33 34 51 54 55 60
You are given that g(1 000) = 2524 and g(1 000 000) = 2624152.
Fin... | HuggingFaceTB/finemath | |
The square root of 6 is expressed together √6 in the radical type and together (6)½ or (6)0.5 in the exponent form. The square source of 6 rounded as much as 7 decimal places is 2.4494897. The is the optimistic solution that the equation x2 = 6.
You are watching: Is the square root of 6 rational
Square root of 6: 2.4... | HuggingFaceTB/finemath | |
# HO24 - Maggie Johnson CS103A Handout#24 Number Theory...
This preview shows pages 1–3. Sign up to view the full content.
Maggie Johnson Handout #24 CS103A Key topics: * Why is Proof Important? * What Are We Trying to Prove? * The Art of Proving Things * A Review of Proof Strategies * Direct Proof * Basics of Number... | HuggingFaceTB/finemath | |
# Probality Question
1. Dec 13, 2008
### thomas49th
1. The problem statement, all variables and given/known data
A drinks machine dispenses coffee into cups. A ign on the machine inicats that each cup contains 50ml of coffee. The machine actually dispenses a mean amount of 55 ml per cup and 10% of the cups contain l... | HuggingFaceTB/finemath | |
+0
0
140
2
We also use radians. Just as there are 360 degrees in a circle, there are 2pi radians in a circle. Compute tan pi/3.
Jun 28, 2018
#1
+2
Just the answer: $$\sqrt{3}$$ .
Jun 28, 2018
#2
+2
To convert rads to degrees :
rads * 180 / pi ....so we have...
pi / 3 * 180 / pi =
180 /3 = 60°
... | HuggingFaceTB/finemath | |
# Exploring Thales’ Theorem
I was playing with a geometry software package and decided to explore Thales Theorem.
The theorem states that for any diameter line drawn through the circle with endpoints B and C on the circle (obviously passing through the circle’s center point), any third non-collinear point A on the ci... | HuggingFaceTB/finemath | |
# Matrix : Types
1. Row Matrix A matrix having only one row and n columns is called row matrix. i.e. [a11 a12 a13….. a1n]1xn For example [2 3 4 5]1×4 2. Column Matrix A matrix having only m rows and one column is called column matrix i.e. 3. Square Matrix A matrix order m x n called square matrix where m = n, i.e., i... | HuggingFaceTB/finemath | |
# Difference between revisions of "Quasi-Newton methods"
Author: Jianmin Su (ChemE 6800 Fall 2020)
Steward: Allen Yang, Fengqi You
Quasi-Newton Methods are a kind of methods used to solve nonlinear optimization problems. They are based on Newton's method yet can be an alternative of Newton's method when the objectiv... | HuggingFaceTB/finemath | |
# Show that $f_n \to f$ over $\| \cdot \|_\infty$ implies $f_n \to f$ over $\| \cdot \|_2$ and is $(C[a,b], \|\cdot\|_2)$ Banach?
Exercise :
Over the space $$C[a,b]$$ we define the norm $$\|f\|_2 = \sqrt{\int_a^bf(x)^2\mathrm{d}x}$$ (i) Show that if the sequence $$(f_n)$$ converges to $$f$$ with respect to $$\| \cdot... | HuggingFaceTB/finemath | |
# 903 metric teaspoons in US gallons
## Conversion
903 metric teaspoons is equivalent to 1.19273681639704 US gallons.
## Conversion formula How to convert 903 metric teaspoons to US gallons?
We know (by definition) that: $1\mathrm{brteaspoon}\approx 0.00132086026179074\mathrm{usgallon}$
We can set up a proportion ... | HuggingFaceTB/finemath | |
## sciencepantheism.com - the pro math teacher
• Subtraction
• Multiplication
• Division
• Decimal
• Time
• Line Number
• Fractions
• Math Word Problem
• Kindergarten
• a + b + c
a - b - c
a x b x c
a : b : c
# Addition Subtraction Multiplication And Division Worksheet
Public on 03 Oct, 2016 by Cyun Lee
### addi... | HuggingFaceTB/finemath | |
# Geometric direction vectors
I have a problem with the following formula i don't know if it's correct:
i have the following vectors: P1 = (x1,y1), P2 = (x2,y2).
the formula is the following:
P1 - P2 / || P1 - P2 || where ||.|| is the norm.
i did the following.
(x1-x2)/ sqrt[(x1-x2)^2 + (y1-y2)^2]
(y1-y2)/ sqrt[(x1-x... | HuggingFaceTB/finemath | |
# What is 1/5 + 1/5? 1 5
+
1 5
## Step 1
Since our denominators match, we can add the numerators.
1 + 1 = 2
2 5
## Step 2
Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction?
To find out, we try dividing it by 2...
Nope! So now we try the next greatest prime nu... | HuggingFaceTB/finemath | |
# Solving a Matrix with variables
1. Jan 16, 2013
### brownman
1. The problem statement, all variables and given/known data
Find all values of k, if any, that satisfy the equation.
[2 2 k]*[1 3 0; 3 0 5; 0 5 -1][2 ; 2 ; k]=0
2. Relevant equations
3. The attempt at a solution
Multiplying the two matrices on the ... | HuggingFaceTB/finemath | |
Simplify. a/6b^3 + 5/9b^2 divided by 7/6b - 1/9b^3 Leave answers in factored and reduced form. Include parenthesis around polynomials in numerator and/or denominator.
1 Answer |Add Yours
justaguide | College Teacher | (Level 2) Distinguished Educator
Posted on
The expression `(a/(6b^3) + 5/(9b^2))/(7/(6b) - 1/(9b^... | HuggingFaceTB/finemath | |
Question
# The value of λ for which the straight line x−λ3=y−12+λ=z−3−1 may lie on the plane x−2y=0, is
A
12
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B
2
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C
0
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
There ... | HuggingFaceTB/finemath | |
# Percentages of … To find a percentage of any amount, start by finding 10%
Finding 10% is easy – just divide the amount by 10
So, to find 10% of 120, all you do is 120 ÷ 10 = 12
So,
10% of 120 = 12 If we need to find 30% of an amount, we still start by finding 10% (remember: to find 10%, just divide the amount by ... | HuggingFaceTB/finemath | |
# What Are Reasonable Spans of Carriers made of Various Materials
### General arrangement and use of a carrier
At this part a simple method is presented for finding out if a carrier that is loaded with a weight at its middle has a reasonable span or not. For this purpose some simple calculations have to be performed.... | open-web-math/open-web-math | |
The OEIS is supported by the many generous donors to the OEIS Foundation. Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A333650 Triangle read by rows: T(n,k) gives the number of domino towers of height k consisting of n bricks. 6
1, 1, 2, 1, 4, 4, 1, 7, 11, 8, 1, 12, 24, 28, 16, 1, 20, 52, 70,... | HuggingFaceTB/finemath | |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 21 Nov 2018, 02:33
### 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.
Customize... | HuggingFaceTB/finemath | |
# Directional derivatives
### Directional derivatives
#### Lessons
Notes:
Suppose we have a vector $\vec{v} =\lt v_1, v_2\gt$. The unit vector will be:
$\vec{v} = \frac{1}{\sqrt{v^2_1 + v^2_2}} \lt v_1,v_2\gt$
Suppose we have a vector $\vec{v} =\lt v_1, v_2,v_3\gt$. The unit vector will be:
$\vec{v} = \frac{1}{ ... | HuggingFaceTB/finemath | |
## Of the 400 employees. 5% of them are park managers. How many managers does the park employee?
Question
Of the 400 employees. 5% of them are park managers. How many managers does the park employee?
in progress 0
6 months 2021-07-25T17:38:18+00:00 1 Answers 4 views 0
16 managers
Step-by-step explanation:
Here, w... | HuggingFaceTB/finemath | |
Prove that the product of an irrational number and a rational number is irrational.
If $x$ is an irrational number and $r$ is a rational number then $xr$ is an irrational number.
Proof. Suppose that $xr$ is a rational number. By defintion of a rational number $xr= m/n$ where $m,n$ are some integers...
That's all I h... | HuggingFaceTB/finemath | |
Skip to main content
Amounts of Substances
Learning Objectives
• Express amounts of substances in g, kg, or mL, or L.
• Express amounts of substances in moles (mol).
• Convert amounts of substances from mass units (g, kg etc) to the unit mole.
Amounts of Substances in Various Units
Amounts of substances are measur... | HuggingFaceTB/finemath | |
# Coth approximation
## Main Question or Discussion Point
In a QM textbook (Newton), I found the below expression for large x:
$coth(x)\cong 1+2e^{-2x}$
I tried
$coth(x)=\frac{e^{x}+e^{-x}}{e^{x}-e^{-x}}=\frac{1+e^{-2x}}{1-e^{-2x}}$
George Jones
Staff Emeritus
Gold Member
Write $z = e^{-2x}$, so that $z$ is small... | HuggingFaceTB/finemath | |
# Find the equation
Question:
Find the equation of the normal toy $=2 x^{3}-x^{2}+3$ at $(1,4)$.
Solution:
finding the slope of the tangent by differentiating the curve
$\mathrm{m}=\frac{\mathrm{dy}}{\mathrm{dx}}=6 \mathrm{x}^{2}-2 \mathrm{x}$
$\mathrm{m}=4$ at $(1,4)$
normal is perpendicular to tangent so, $m_{... | HuggingFaceTB/finemath | |
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It is currently 31 Mar 2020, 00:21 ### 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 Pre... | HuggingFaceTB/finemath | |
# Homomorphisms of *-Probability Spaces
I previously introduced the concept of a *-probability space as a pair ${(\mathcal A,p)}$ consisting of a state ${p}$ on a *-algebra ${\mathcal A}$. As we noted, this concept is rather too simplistic to properly capture a noncommutative generalisation of classical probability sp... | open-web-math/open-web-math | |
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$$\newcommand{\id}{\mathrm{id}}$$ $$\newcommand{\Span}{\mathrm{span}}$$ $$\newcommand{\kernel}{\mathrm{null}\,}$$ $$\newcommand{\range}{\mathrm{range}\,}$$ $$\newcommand{\RealPart}{\mathrm{Re}}$$ $$\newcommand{\ImaginaryPart}{\mathrm{Im}}$$ $$\newcommand{\Argument}{\mathrm{Arg}}$$ $$\newcommand{\no... | HuggingFaceTB/finemath | |
# Difference between revisions of "2021 AMC 12A Problems/Problem 24"
## Problem
Semicircle $\Gamma$ has diameter $\overline{AB}$ of length $14$. Circle $\Omega$ lies tangent to $\overline{AB}$ at a point $P$ and intersects $\Gamma$ at points $Q$ and $R$. If $QR=3\sqrt3$ and $\angle QPR=60^\circ$, then the area of $\t... | HuggingFaceTB/finemath | |
+0
# E(R)=24/11
0
158
1
E(R)=24/11
Var(R)=95/121
these are the mean and variance of a four sided spinner that is represented by the discrete random variable R
find the new mean and Variance when the numbers in the spinner are trebled and then subtracted from 1
Oct 30, 2018
#1
+5770
+1
$$E[aX + b] = aE[X] + b\\... | HuggingFaceTB/finemath | |
Updated by tydcconway on Apr 22, 2019
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# Curated Lesson Resources-Geometric angles
1
## Website at https://www.geogebra.org/graphing?lang=en
Description -
A geometric tool, that students can use to create geometric figures.
Rationale -
I can have my... | HuggingFaceTB/finemath | |
## Conversion formula
The conversion factor from millimeters to yards is 0.0010936132983377, which means that 1 millimeter is equal to 0.0010936132983377 yards:
1 mm = 0.0010936132983377 yd
To convert 5711 millimeters into yards we have to multiply 5711 by the conversion factor in order to get the length amount from... | HuggingFaceTB/finemath | |
Take My Semistable Point Class
A "Semistable Point Class" QE" is a standard mathematical term for a generalized consistent expression which is used to fix differential formulas and has options which are regular. In differential Class solving, a Semistable Point function, or "quad" is used.
The Semistable Point Class ... | HuggingFaceTB/finemath | |
# The Whirlygig.
Designers of amusement park rides need to know a lot of physics. Consider those rides that carry passengers in dizzying complex motions, subjecting them to gut wrenching twists and turns with changes of velocity and acceleration.
Here's a design for such a ride, sketched by an apprentice employee. He... | HuggingFaceTB/finemath | |
MORE IN Applied Mathematics 3
MU Computer Engineering (Semester 3)
Applied Mathematics 3
December 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary
1 (a) Find Laplace of {t5 c... | HuggingFaceTB/finemath | |
# Discrete random variable
A random variable is said to be discrete if the set of values it can take (its support) has either a finite or an infinite but countable number of elements. Its probability distribution can be characterized through a function called probability mass function.
## Definition
The following is... | HuggingFaceTB/finemath | |
# HSSlive: Plus One & Plus Two Notes & Solutions for Kerala State Board
## 1 Gaj in Square Centimeter in Punjab
In this article, you will learn how to convert 1 Gaj in Square Centimeter in Punjab. Gaj is one of the most commonly used measurement units used in almost every state of India. People in Indian states refer... | HuggingFaceTB/finemath | |
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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A198405 Number of 2n X 2 0..4 arrays with values 0..4 introduced in row major order and each element equal to exactly one horizontal an... | HuggingFaceTB/finemath | |
# Changeset 2327 for src/ASM/CPP2012-asm
Ignore:
Timestamp:
Sep 10, 2012, 4:45:44 PM (8 years ago)
Message:
Fixed typos in paper highlighted by referees. More substantial changes will have to wait due to us moving house.
File:
1 edited
### Legend:
Unmodified
r2095 This assembler constitutes a major component of t... | open-web-math/open-web-math | |
# 12640 (number)
12,640 (twelve thousand six hundred forty) is an even five-digits composite number following 12639 and preceding 12641. In scientific notation, it is written as 1.264 × 104. The sum of its digits is 13. It has a total of 7 prime factors and 24 positive divisors. There are 4,992 positive integers (up t... | HuggingFaceTB/finemath | |
# What Is 7 Squared? Rate this post
You are using Google to search for information, articles, and expertise on the subject of what is 7 squared, but you are unable to find the material that you require. In this section, you will find the most valuable content that has been compiled and compiled by the Kayaknv.com team... | HuggingFaceTB/finemath | |
# Pascals Triangle, Home Work and Root Cause Analysis
,
"Dad, can you help me with my homework"? The phrase every parent dreads, particularly as you know it's maths night. The eldest is fiddling with his iPad doing something complicated while Grandpa looks on muttering that in his day silicon based tablets were smal... | HuggingFaceTB/finemath | |
# 0.241 as a Fraction 0.241 = ?
What is 0.241 as a fraction?
0.241 = 241/1000.
0.241 as a fraction is 241/1000.
This decimal to fraction conversion provides the detailed information on what is 0.241 as a fraction in simplest form and how it can be calculated.
Calculation: 0.241 in Fraction
0.241 = (?)
= (0.241/1) x ... | HuggingFaceTB/finemath | |
## College Physics (4th Edition)
The length of the brick as measured by the rule would be $24.98~cm$
We can find the increase in the length of 25.00 cm of the steel rule when it is heated: $\Delta L = \alpha~\Delta T~L$ $\Delta L = (12\times 10^{-6}~K^{-1})(60.00~K)~(25.00~cm)$ $\Delta L = 1.80\times 10^{-2}~cm$ The n... | HuggingFaceTB/finemath | |
World's most popular travel blog for travel bloggers.
# Explain inclusion-exclusion principle with example.
, ,
In combinatorics (combinatorial mathematics), the inclusion–exclusion principle is a counting technique which generalizes the familiar method of obtaining the number of elements in the union of two finite ... | HuggingFaceTB/finemath | |
0
# How do you solve for x in the equation 3 over x square plus 3 over 4x minus 3 over 1 equals 6 over 2x square minus 6 over 3x plus 6 over 5?
Updated: 9/19/2023
Wiki User
13y ago
3/(x2+4x-1) = 6/(2x2-3x+5)
Cross - multiply in order to eliminate the fractions:
6*(x2+4x-1) = 3*(2x2-3x+5)
6x2+24x-6 = 6x2-9x+15
... | HuggingFaceTB/finemath | |
# IBDP Physics B.5 Current and circuits IB Style Question Bank : HL Paper 2
### Question
An electrically heated pad is designed to keep a pet warm.
The pad is heated using a resistor that is placed inside the pad. The dimensions of the resistor are shown on the diagram. The resistor has a resistance of $$4.2 \Omega$$... | HuggingFaceTB/finemath | |
Running on the Tangle: a marathon of random walkers
Feb 13, 2019 · 7 min read
In today’s blog post, we’ll have a closer look at the journey of random walkers. Similar to one of our previous posts on mixing time in the Tangle, we are interested in understanding how long random walkers have to walk to select a tip and,... | HuggingFaceTB/finemath | |
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# Elementary Differential Equations and Boundary Value Problems - Boyce W.E.
Boyce W.E. Elementary Differential Equ... | HuggingFaceTB/finemath | |
# Conservation of Energy
• Aggie
#### Aggie
A block, mass 0.75 kg, is "shot" from a spring gun from a table. The table has a height 1.04 m and is frictionless. If the spring has k=28 N/m and is originally compressed 0.23 m, how fast will the block be goign when it hits the ground?
(1/2)*kx^2 = (1/2)mv^2 ?
I got 4.... | HuggingFaceTB/finemath | |
# 10.3: Basis Functions
$$\newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} }$$
$$\newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}}$$
$$\newcommand{\id}{\mathrm{id}}$$ $$\newcommand{\Span}{\mathrm{span}}$$
( \newcommand{\kernel}{\mathrm{null}\,}\) $$\newcomma... | HuggingFaceTB/finemath |
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