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# Rice distribution: estimate $\nu$ from 2D-data
How can I get a good estimate of parameter $\nu$ of the Rice distribution based on a set of $(x,y)$-coordinates? Edit: Given whuber's excellent comment, I'm not looking for an unbiased estimate. Instead, I'd like to know whether there is an estimate that takes advantage... | HuggingFaceTB/finemath | |
ans-odd-problems-ch18
# ans-odd-problems-ch18 - CHAPTER 18 DIVIDENDS AND OTHER...
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CHAPTER 18 DIVIDENDS AND OTHER PAYOUTS Solutions to Odd-Numbered Questions and Problems NOTE: All end-of-chapter problems were solved using a spreadsheet. Many problems re... | HuggingFaceTB/finemath | |
You"ve studied how the trigonometric functions sin ( x ) , cos ( x ) , and tan ( x ) can be used to find an unknown side length of a right triangle, if one side length and an angle measure are known.
The inverse trigonometric functions sin − 1 ( x ) , cos − 1 ( x ) , and tan − 1 ( x ) , are used to find the unknown me... | HuggingFaceTB/finemath | |
# You asked: How much dry egg noodles make 4 cups cooked?
Contents
8 ounces of uncooked long pasta shapes = 4 cups cooked. Egg noodles.
## How much dried pasta Makes 4 cups cooked?
Short Pastas
Pastas Uncooked Cooked
Penne 8 oz. 4 cups
Rigatoni 8 oz. 4 1/4 cups
Rotelle 8 oz. 3 1/2 cups
Ziti 8 oz. 5 cups
## How ma... | HuggingFaceTB/finemath | |
0
# What is the lowest common multiple of 14 and 21?
Updated: 4/28/2022
Wiki User
8y ago
The least common multiple of 14 and 21 is 42.
14, 28, 42, 56 ...
21, 42, 63, 84, ...
Wiki User
8y ago
Earn +20 pts
Q: What is the lowest common multiple of 14 and 21?
Submit
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### Wh... | HuggingFaceTB/finemath | |
Edition: U.S. / Global
# Numberplay: Three-Point Turn
Gary AntonickHow narrow can a road be and still allow a three-point turn?
Welcome to Numberplay, the weeklong game of collaboration and discovery that also happens to be about math. If you’re new to the game, give it a try by leaving a comment at the end of this ... | HuggingFaceTB/finemath | |
# Structural Analysis Questions and Answers – Portal Frames Numericals
This set of Structural Analysis Multiple Choice Questions & Answers (MCQs) focuses on “Portal Frames Numericals”.
1. Vertical reaction at support B for the given frame is ______
a) 10kN (Upward)
b) 10kN (Downward)
c) 26kN (Upward)
d) 26kN (Downwa... | HuggingFaceTB/finemath | |
# Evaluate: (p)/(3)+2.5=4.75
## Expression: $\frac{ p }{ 3 }+2.5=4.75$
Convert the decimal into a fraction
$\frac{ p }{ 3 }+\frac{ 5 }{ 2 }=4.75$
Convert the decimal into a fraction
$\frac{ p }{ 3 }+\frac{ 5 }{ 2 }=\frac{ 19 }{ 4 }$
Multiply both sides of the equation by $12$
$4p+30=57$
Move the constant to the... | HuggingFaceTB/finemath | |
Discover a lot of information on the number 246: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!
## Mathematical properties of 246
Is 246 a prime number? No
Is 246 a perfect number? No
Number of divisors 8
List of dividers 1, 2, 3, 6, 41,... | HuggingFaceTB/finemath | |
2 × 2 real matrices
In mathematics, the associative algebra of 2×2 real matrices is denoted by M(2, R). Two matrices p and q in M(2, R) have a sum p + q given by matrix addition. The product matrix p q is formed from the dot product of the rows and columns of its factors through matrix multiplication. For
$q={\begin{... | HuggingFaceTB/finemath | |
2023-07-25T09:12:46+00:00
# Multiple Regression Analysis & Time-Series Forecasting
This paper concentrates on the primary theme of Multiple Regression Analysis & Time-Series Forecasting in which you have to explain and evaluate its intricate aspects in detail. In addition to this, this paper has been reviewed and pur... | HuggingFaceTB/finemath | |
# How to Use Fraction Bars
••• Alexa Smahl/Demand Media
Print
Fraction bars are strips of material -- such as plastic or paper -- that are divided into pieces to represent fractions. The bars take the abstract concepts of a whole and fractions of a whole and put them into a concrete, manipulative form. You can use co... | HuggingFaceTB/finemath | |
# Potential and Kinetic Energy on a swing as well as Tension in the rope
1. The problem statement, all variables and given/known data
A 23.0 kg child plays on a swing having support ropes that are 2.10 m long. A friend pulls her back until the ropes are 41.0-degrees from the vertical and releases her from rest.
a.)Wh... | HuggingFaceTB/finemath | |
# math
posted by rick
The Pythagorean Theorem gives the relationship between the sides of a right triangle. The following identities show the relationships between the trigonometric functions of a particular angle.
sin2 θ + cos2 θ = 1
tan2 θ + 1 = sec2 θ
1 + cot2 θ = csc2 θ
Why then are these referred to as the Pyth... | HuggingFaceTB/finemath | |
During AMC testing, the AoPS Wiki is in read-only mode. No edits can be made.
2021 AIME II Problems/Problem 11
Problem
A teacher was leading a class of four perfectly logical students. The teacher chose a set $S$ of four integers and gave a different number in $S$ to each student. Then the teacher announced to the c... | HuggingFaceTB/finemath | |
# 293.5 stones to pounds
## Result
293.5 stones equals 4109 pounds
You can also convert 293.5 stones to stones and pounds.
## Conversion formula
Multiply the amount of stones by the conversion factor to get the result in pounds:
293.5 st × 14 = 4109 lbs
## How to convert 293.5 stones to pounds?
The conversion f... | HuggingFaceTB/finemath | |
Tải bản đầy đủ - 0 (trang)
E. Applications of Rational Functions
# E. Applications of Rational Functions
Tải bản đầy đủ - 0trang
cob19545_ch04_430-445.qxd
11/26/10
8:11 AM
Page 440
College Algebra G&M—
440
4–60
CHAPTER 4 Polynomial and Rational Functions
4.4 EXERCISES
CONCEPTS AND VOCABULARY
Fill in each b... | HuggingFaceTB/finemath | |
Seeing Math™ Secondary: Dynamic Interactive Software Makes Math Come to Life
Seeing Math™ has developed interactive software tools to clarify key mathematical ideas in middle and high school mathematics. Each interactive provides a real-time connection between representations of the mathematics (symbolic, graphical, e... | HuggingFaceTB/finemath | |
Discover a lot of information on the number 6196: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!
## Mathematical properties of 6196
Is 6196 a prime number? No
Is 6196 a perfect number? No
Number of divisors 6
List of dividers 1, 2, 4, 15... | HuggingFaceTB/finemath | |
# Examine whether $(7)^n$ can end with the digit 5 for any $n\in N$.
Given :
The given number term is $7^n$.
To do :
We have to check whether $(7)^n$ can end with the digit 5 for any $n\in N$.
Solution :
If a number ends with the digit 5, it should have 5 as it's prime factor.
$7^n$
$7 = 1\times 7$
$7^n= (1\t... | HuggingFaceTB/finemath | |
# Answers
Solutions by everydaycalculation.com
## Reduce 449/216 to lowest terms
449/216 is already in the simplest form. It can be written as 2.078704 in decimal form (rounded to 6 decimal places).
#### Steps to simplifying fractions
1. Find the GCD (or HCF) of numerator and denominator
GCD of 449 and 216 is 1
2.... | HuggingFaceTB/finemath | |
algebra 1
posted by .
for many skyscrapers, the height of one story is equal to about 12 feet.
(a. write an expressing that approximates the height in feet of a skyscraper that is s stoires tall.
(b. estimate the hieght in feet of skyscrapers that are 20, 24, 28, and 32 stories tall.
pls show me the formula for this... | HuggingFaceTB/finemath | |
# Search by Topic
#### Resources tagged with Using symbols similar to Simultaneous Multiplying:
Filter by: Content type:
Stage:
Challenge level:
### There are 20 results
Broad Topics > Algebra > Using symbols
### LOGO Challenge 7 - More Stars and Squares
##### Stage: 3 and 4 Challenge Level:
Can you use LOGO to ... | HuggingFaceTB/finemath | |
# Normal Force and Force of Gravity: When and why are they equal?
#### Trooper100
1. The problem statement, all variables and given/known data
My teacher explained to my class that Normal force equals Force of Gravity. Given a free body diagram on a flat surface, Normal force is directed up, and Force of Gravity is ... | HuggingFaceTB/finemath | |
# math
posted by .
What is the slope of a vertical line?
–5
–2
2
5
• math -
slope of a vertical line? undefined, or infinity.
• math -
thank you
## Similar Questions
1. ### math
Find the slope and the intercepts of each line. g(x)=54x-1 x=-3 Help please! :) g(x)=54x-1 x=-3 I am assuming that you are trying to... | HuggingFaceTB/finemath | |
# logic gates simplest square wave generator
Using CMOS technology, where tp=tHL=tLH=10ns, I need to make an simple circuit which generates square waves with frequency of 50MHz. I know that T=1/f = 20ns. I also have another formula that I found in a book and it says T = tHL+tLH = 10ns + 10ns = 20ns. I know how to conv... | HuggingFaceTB/finemath | |
# EMF Formula
The EMF or electromotive force is the energy supplied by a battery or a cell per coulomb (Q) of charge passing through it. The magnitude of emf is equal to V (potential difference) across the cell terminals when there is no current flowing through the circuit.
e = E/Q
Where, e = emf or electromotive f... | HuggingFaceTB/finemath | |
An automobile gasoline tank holds 21 kg of gasoline. When the gasoline burns, 82 kg of oxygen is consumed and carbon dioxide and water are produced.What is the total combined mass of carbon dioxide and water that is produced?
Your balanced equation. ( standard for this type problem )
2C8H18 + 25O2 → 16CO2 + 18H2O
--... | HuggingFaceTB/finemath | |
# ACT Math : How to find if of acute / obtuse isosceles triangles are congruent
## Example Questions
### Example Question #1 : How To Find If Of Acute / Obtuse Isosceles Triangles Are Congruent
There are two obtuse triangles. The obtuse angle of triangle one is . The sum of two angles in the second triangle is . Whe... | HuggingFaceTB/finemath | |
# Python program to find second largest number in a list
This article will learn to find the second largest number in a list using the python program.
So, we find the second largest number in a list using 3 different methods:
1. By using sorting
2. By using max() function
3. By using the traversal.
## By using sort... | HuggingFaceTB/finemath | |
Solutions by everydaycalculation.com
1st number: 10 1/2, 2nd number: 6/28
21/2 + 6/28 is 75/7.
1. Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
2. For the 1st fraction, since 2 × 14 = 28,
21/2 = 21 × 14/2 × 14 = 294/28
3. Likewise, for the 2nd fraction, since 28 × 1 = 28,
6/... | HuggingFaceTB/finemath | |
# Summary:
For any given language, what is the smallest amount of unique characters for your language to be Turing-Complete?
# Challenge:
For any language of your choice, find the smallest subset of characters that allows your language to be Turing-Complete. You may reuse your set of characters as many times as you ... | open-web-math/open-web-math | |
Solutions by everydaycalculation.com
1st number: 5 4/10, 2nd number: 75/84
54/10 + 75/84 is 881/140.
1. Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
2. For the 1st fraction, since 10 × 42 = 420,
54/10 = 54 × 42/10 × 42 = 2268/420
3. Likewise, for the 2nd fraction, since 8... | HuggingFaceTB/finemath | |
# Thermodynamic properties and relations
In order to carry through a program of finding the changes in the various thermodynamic functions that accompany reactions—such as entropy, enthalpy, and free energy—it is often useful to know these quantities separately for each of the materials entering into the reaction. For... | HuggingFaceTB/finemath | |
# find minimum possible value..
• Aug 11th 2009, 09:50 PM
nh149
find minimum possible value..
can anyone help me with this problem?
find the minimum possible value of x^2 + y^2 given that x,y are real numbers such that
xy(x^2 - y^2 ) = x^2 + y^2 , x is not equal to 0.
thanx(Talking)
• Aug 12th 2009, 01:02 AM
Hello n... | HuggingFaceTB/finemath | |
# What are the two methods to determine the scale of aerial photographs?
## What are the two methods to determine the scale of aerial photographs?
Feature of Known Size The scale can be determined by measuring the distance or length of the feature on the photo and comparing it to the real-life or ground distance.
##... | HuggingFaceTB/finemath | |
# Degeneracy (graph theory) A 2-degenerate graph: each vertex has at most two neighbors to its left, so the rightmost vertex of any subgraph has degree at most two. Its 2-core, the subgraph remaining after repeatedly deleting vertices of degree less than two, is shaded.
In graph theory, a k-degenerate graph is an undi... | HuggingFaceTB/finemath | |
When dealing with quadrilaterals, one crucial fact to understand is that in certain cases, a circle can be circumscribed around the shape. This article will delve into the conditions that need to be met for a circle to be circumscribed around a given quadrilateral, as well as the properties of such a circle. We will al... | HuggingFaceTB/finemath | |
## Merge two Binary Trees- Interview Problem
Difficulty: Easy
Asked in : Amazon, Microsoft
#### Understanding the Problem:
You are given two binary trees and you need to merge them into one binary tree.
To solve this problem, you can imagine putting one of the binary tree on top of the other in order to cover the ... | HuggingFaceTB/finemath | |
Examveda
# A train cover a distance of 3584 km in 2 days 8 hours. If it covers 1440 km on the first day and 1608 km on the second day, by how much does the average speed of the train for the remaining part of the journey differ from that for the entire journey?
A. 3 km/h
B. 4 km/h
C. 10 km/h
D. 2 km/h
### Solutio... | HuggingFaceTB/finemath | |
# Lesson 086: Pygame: Collision Detection | Learning Records
Posted by TreeNode on Sun, 05 May 2019 15:48:04 +0200
Today we are going to learn collision detection. Most games need to do collision detection because you need to know whether the ball collided, whether the bullet hit the target, whether the protagonist s... | HuggingFaceTB/finemath | |
# Which X Who
Posted on
If you are looking for the answer of which x who, you’ve got the right page. We have approximately 10 FAQ regarding which x who. Read it below.
## Senior citizens who joinedhave an age which is twice asold
have an age which is twice as
old as the other participants.
Twice as old in algebraic... | HuggingFaceTB/finemath | |
## Sunday, May 8, 2011
### Kris' Algebra post
Solving one step equations
solve by inspection
15+b=23
Isolate the variable
15+(-15)b=23-15
We do 23-15 and that will give you B
n=8
15+b=23
15+8=23
23=23
^ MAKE SURE YOU DO THIS!
solving with algebra tiles.
1 Step equations
3) 15+b=23
15+8=23
23=23
15) V/... | HuggingFaceTB/finemath | |
1.15 Ratios & Percentages
### Ratios
A ratio is a proportional relationship of one value to another, e.g., the ratio of gas to oil in chain saw mix. Ratios can be written either as a fraction, 1/2, or in ratio notation, 1:2. The value of a ratio is the division of the first number by the second number. For example, c... | HuggingFaceTB/finemath | |
# Worksheet on Interior Angles of a Polygon
Practice the questions given in the worksheet on interior angles of a polygon.
We know, the sum of all the interior angles of a polygon is (n – 2) × 180°. The questions are based on finding the sum of the interior angles of a polygon using the formula.
1. Is it possible to... | HuggingFaceTB/finemath | |
## College Algebra (6th Edition)
please see image below (f(x)=red curve, g(x)=blue curve), asymptote of $f:\quad\quad y=0$ asymptote of $g:\quad\quad y=0$ Graph $f(x)=3^{x}\qquad$ (red) by plotting the points from the table and connecting with a smooth curve. $g(x)=3\cdot 3^{x}=3\cdot f(x)$ so the graph of $g(x)$ (blu... | HuggingFaceTB/finemath | |
### Scribe post
Wednesday, January 21, 2009
SCRIBE
The first thing we did in math to day was go over yesterdays homework. Then Mr. H asked us to put some examples of questions that we know the sum is a negative for examples like...
Subtraction Examples
2q-12=-42
-4y-3=-15
7x-2=61
Multiplicitive
-5x-12=-42
-3x+1=10
... | HuggingFaceTB/finemath | |
# How to build a chatbot in less than 50 lines of code
[CG]Maxime
40.4K views
### Open Source Your Knowledge, Become a Contributor
In this article, I will present a simple algorithm, based on Markov Chains, to generate random sentences. At the end, I provide the full source code and you will be able to test it direc... | HuggingFaceTB/finemath | |
# 13. A( -2, -5 ) => A' is a glide reflection where the translation is ( x, y ) => ( x + 7, y ), and the line of reflection is y = 2. What are the coordinates of
1,312 results
1. ## Math
A triangle is reflected across line L and then across line m. If the lines intersect, what kind of isometry is this compostiton of ... | HuggingFaceTB/finemath | |
This site is supported by donations to The OEIS Foundation.
Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
A109921 a(2n) = prime(n). a(2n+1) = sum of composite numbers between prime(n) and prime(n+1). We define a(1) = 1. 1
1, 2, 0, 3, 4, 5, 6, 7, 27, 11, 12, 13, 45, 17, 18, 19, 63, 23, 130, 2... | HuggingFaceTB/finemath | |
# Check whether a number can be represented as difference of two squares
Given a number N, the task is to check if this number can be represented as the difference of two perfect squares or not.
Examples:
Input: N = 3
Output: Yes
Explanation:
22 – 11 = 3
Input: N = 10
Output: No
## Recommended: Please try your app... | HuggingFaceTB/finemath | |
1310-Notes-Sec-33
# 1310-Notes-Sec-33 - Math 1310 Section 3.3 Variation Youll...
This preview shows pages 1–3. Sign up to view the full content.
Math 1310 Class Notes – Section 3.3, Page 1 of 4 Math 1310 Section 3.3 Variation You’ll be asked to solve some problems involving functions using variation. We’ll consider ... | HuggingFaceTB/finemath | |
1. ## find gradient, equation, value, graph included.
This seems simple but it doesnt really sink in for me.
Can i have working out plz. thanx for any help
2. ## Solution
I'm not sure about (i), but you don't need it to find the other two answers.
ii. The slope of the tangent at a is given by dy/dx at a. So $y'=2x... | HuggingFaceTB/finemath | |
# 211432 (number)
211,432 (two hundred eleven thousand four hundred thirty-two) is an even six-digits composite number following 211431 and preceding 211433. In scientific notation, it is written as 2.11432 × 105. The sum of its digits is 13. It has a total of 6 prime factors and 32 positive divisors. There are 91,584... | HuggingFaceTB/finemath | |
# Local Inversion theorem (first sentence of the proof)
In this local inversion theorem I want to prove that a map f between two Banach spaces E and F is a local diffeomorphism.
In the proof it says :
Without loss of generality we can consider the case where E= F.
Sorry for this simple question, but why is that? Ho... | HuggingFaceTB/finemath | |
+0
# trig
0
96
1
In triangle BCD, angle C = 90 degrees, CD = 3, and BD = sqrt(14) . What is tan B?
Feb 13, 2021
#1
+98
+6
So we have side CD and side BD. We want to find side BC first to work out tangent. Just use pythagoream theorem, so BC=$\sqrt{5}$. Now, you use that Tangent=Opposite/Adjacent so you have CD/BC... | HuggingFaceTB/finemath | |
## Filters
Clear All
Actinoid contraction is greater from element to element than lanthanoid contraction. The reason behind it is the poor shielding effect of 5 (in actinoids) orbitals than 4 orbitals( in lanthanoids). As a result, the effective nuclear charge experienced by valence electrons is more in actinoids tha... | open-web-math/open-web-math | |
# I don't understand proofs!
## Recommended Posts
I just started proofs yesterday and I have no idea what I am doing! I have finally hit the brick wall, and I just can't go any further. I understand how a proof works and everything, but I have no clue how to find the reasons and statements. I am completely lost and I... | HuggingFaceTB/finemath | |
Exam: 050290RR – A Review of Basic Algebra; Graphs, Equations of Lines, and F
1. Solve the following equation for q:
A. q = –5
B. q = 5
C. q = –2
D. q = 2
2. Graph the function f(x) = x
A.
B.
C.
2
– 2.
D.
3. Find the slope of the line determined by the equation 2x = y.
A. m = –3
B. m = 2
C. m = 3
D. m ... | HuggingFaceTB/finemath | |
# GDUT_寒假训练题解报告_专题I_K题 个人题解报告
Josephina is a clever girl and addicted to Machine Learning recently. She
pays much attention to a method called Linear Discriminant Analysis, which
has many interesting properties.
In order to test the algorithm’s efficiency, she collects many datasets.
What’s more, each data is divided ... | HuggingFaceTB/finemath | |
Algebra Tutorials!
Home Rational Expressions Graphs of Rational Functions Solve Two-Step Equations Multiply, Dividing; Exponents; Square Roots; and Solving Equations LinearEquations Solving a Quadratic Equation Systems of Linear Equations Introduction Equations and Inequalities Solving 2nd Degree Equations Review Solv... | HuggingFaceTB/finemath | |
# Swinging periods of physical and simple pendelums
1. Nov 18, 2013
### Nikitin
Hey! Where is the error in my reasoning?:
The acceleration of the centre of mass in a swinging physical pendulum in simple harmonic motion is given by:
$M \ddot{\vec{r_{cm}}} = \sum m_j \ddot{\vec{r_j}} = \vec{g} M$
If $x$ is the coor... | HuggingFaceTB/finemath | |
# How can I programmatically define constraints for minimize_constrained?
I'd like to run a minimization problem in several different dimensions, and then find a minimum over the results (for more information on the problem see here).
I can easily define both the objective function and the main constraint in a dimens... | HuggingFaceTB/finemath | |
# Video: KS2-M16 • Paper 3 • Question 1
The numbers in this sequence increase by 14 each time. ＿ 82 96 ＿ 124 138 ＿. Write the missing numbers.
04:19
### Video Transcript
The numbers in this sequence increase by 14 each time. And then the sequence shows a missing number, 82, 96, another missing number, 124, 138, and... | HuggingFaceTB/finemath | |
# Question #ca3af
Apr 10, 2015
About $3.94 \cdot {10}^{20}$ photons
First find the energy of the photon
$E = h f$
where $h = 6.63 \cdot {10}^{- 34}$ Planck's constant and $f$ is the frequency of the radiation. You are given wavelength so that needs to be converted.
$E = h \cdot \frac{c}{\lambda}$
$= 6.63 \cdot {1... | HuggingFaceTB/finemath | |
# wdenoise2
Wavelet image denoising
## Description
example
IMDEN = wdenoise2(IM) denoises the grayscale or RGB image IM using an empirical Bayesian method. The bior4.4 wavelet is used with a posterior median threshold rule. Denoising is down to the minimum of floor(log2([M N])) and wmaxlev([M N],'bior4.4') where M ... | open-web-math/open-web-math | |
fall17mth143.practice2.2-InfiniteSeries.pdf
This preview shows pages 4–6. Sign up to view the full content.
n = 1 n n 2 + 1 Answer: Answer(s) submitted: (incorrect) Correct Answers: div 17. (1 point) Consider the series n = 1 n 2 n + 8 Determine whether the series converges, and if it converges, determine its value. ... | HuggingFaceTB/finemath | |
# There are 225 wolves in a state park. The population is increasing at the rate of 15% per year. When will the population reach 500?
Apr 16, 2016
Between years 5 and 6.
#### Explanation:
Population after $n$ years is given by the formula
$\textcolor{w h i t e}{\text{XXX}} {P}_{n} = 225 \times {\left(1.15\right)}^{... | HuggingFaceTB/finemath | |
A l g e b r a M i x t u r e C a l c u l a t o r
Scroll down for instructions.
What type of mixture problem is this?
Click "RESET" to clear all the boxes.
In algebra, mixture problems always fall into 1 of 3 categories. A) Mixing 2 solutions to make a third Example: You need 20 liters of 80% antifreeze solution... | HuggingFaceTB/finemath | |
Filter (mathematics) explained
In mathematics, a filter or order filter is a special subset of a partially ordered set (poset). Filters appear in order and lattice theory, but can also be found in topology, from which they originate. The dual notion of a filter is an order ideal.
Filters on sets were introduced by He... | 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!)
A202239 n such that the sum of the factorials of the digits of n equals the sum of d|n, 1
620, 13407, 66061, 266533, 282401, 416641, 3507607, 7036153, 7622243, 10327663, 17... | HuggingFaceTB/finemath | |
## Geometry: Common Core (15th Edition)
The two sides that are marked congruent both measure $18$. Another side measures $16.4$. The last side is already given; it measures $4.8$.
We can set the first set of congruent sides equal to one another to solve for $b$: $4y + 6 = 7y - 3$ Subtract $6$ from each side of the equ... | HuggingFaceTB/finemath | |
# Let $A$ and $B$ be two nilpotent matrices. Prove that $A+B$ is nilpotent
Let $$A$$ and $$B$$ be two nilpotent matrices. Prove that $$A+B$$ is nilpotent.
I'm new to the study of matrices, I already proved that $$AB$$ is nilpotent too (that was the previous question) but I have no clue about solving this one. Plus, I... | HuggingFaceTB/finemath | |
GMAT Question of the Day - Daily to your Mailbox; hard ones only
It is currently 17 Feb 2019, 08:03
### 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 | |
# Unintuitive Statistical Phenomenon: Regression to the Mean
• Scope:
• Artificial Intelligence
## Introduction
Lately, I’ve been working on inspecting a problem of popularity prediction of videos promoted on Facebook. Popularity was defined/determined here as a number of views compared to number of all other views ... | HuggingFaceTB/finemath | |
# Main Categories
Total:
\$0.00
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# 2nd Grade Place Value Activity: Understand Three-Digit Numbers {2.NBT.1}
Product Description
Three-Digit Numbers Place Value 'Clip and Flip' Cards for 2nd grade contains 68 self-correcting cards to help students understand how three-digit numbers are f... | HuggingFaceTB/finemath | |
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|
7.5
|
10
|
12.5
|
15
|
17.5
|
20
|
0
|
5
|
10
|
15
|
20
|
25
|
30
24,959
34,90,279
#### Total Payment(Principal + Interest)
59,90,279
Want to print OR share a custom link to your EMI calculation (with all your numbers pre-filled)?
## What is EMI?
Equated Monthly Installment... | HuggingFaceTB/finemath | |
# Need help finding inverse under $a\circ b = a^b b^a$
I'm going through some problems in Theorems, Corollaries, Lemmas, and Methods of Proof, and I'm stuck at a certain problem that seemed very interesting until I couldn't solve it for the life of me.
Let $\circ$ be defined on $\mathbb R^+$ as $a\circ b = a^b b^a$. ... | HuggingFaceTB/finemath | |
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# What is the solution to the compound inequality in interval notation? ... | HuggingFaceTB/finemath | |
# Help understanding why v is negative but moving positively
## Homework Statement (This is a photocopy of the page, no real books were defiled in the process of studying :P)
## The Attempt at a Solution
In an example in my book, a problem reads that a car is moving in the positive x direction, the initial velocity ... | HuggingFaceTB/finemath | |
# What is 177cm to inches
Have 177cm to inches you ever found yourself in a situation where you needed to convert measurements from centimeters to inches? Whether it’s for fashion, home improvement, or simply satisfying your curiosity, being able to do quick conversions is a handy skill to have. In this blog post, we’... | HuggingFaceTB/finemath | |
# 2563. Count the Number of Fair Pairs
## Description
Given a 0-indexed integer array nums of size n and two integers lower and upper, return the number of fair pairs.
A pair (i, j) is fair if:
• 0 <= i < j < n, and
• lower <= nums[i] + nums[j] <= upper
Example 1:
Input: nums = [0,1,7,4,4,5], lower = 3, upper = 6... | HuggingFaceTB/finemath | |
# Data Science Rosetta Stone: Classification in Python, R, MATLAB, SAS, & Julia
The discovery of the Rosetta Stone in 1799 allowed scholars to finally decipher ancient Egyptian hieroglyphics. The actual content of the Rosetta stone is a very mundane government decree issued by the Egyptian government around 196 BC. Th... | HuggingFaceTB/finemath | |
# 121615 (number)
121,615 (one hundred twenty-one thousand six hundred fifteen) is an odd six-digits composite number following 121614 and preceding 121616. In scientific notation, it is written as 1.21615 × 105. The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors. There are 89,760 p... | HuggingFaceTB/finemath | |
# calculus
posted by .
I need help with this problem. I think I figured out how to set it up but I keep getting stuck in the middle.
A boat is pulled into a dock by a rope attatched to the bow of the boat and passing through a pulley on the dock that is 1m higher than the bow of the boat. If the rope is pulled in at... | HuggingFaceTB/finemath | |
# Diff eq solver
One tool that can be used is Diff eq solver. We can help me with math work.
## The Best Diff eq solver
As any student knows, math homework can be challenging. Between keeping track of formulas and solving complex problems, it's easy to get overwhelmed. Fortunately, there are a few simple tips that c... | HuggingFaceTB/finemath | |
# 31253 (number)
31253 is an odd five-digits prime number following 31252 and preceding 31254. In scientific notation, it is written as 3.1253 × 104. The sum of its digits is 14. It has a total of one prime factor and 2 positive divisors. There are 31,252 positive integers (up to 31253) that are relatively prime to 31... | HuggingFaceTB/finemath | |
When it comes to using A/B testing to improve the user experience, the end goal is about increasing revenue. However, we more often hear about improving conversion rates (in other words, changing a visitor into a buyer).
If you increase the number of conversions, you’ll automatically increase revenue and increase your... | HuggingFaceTB/finemath | |
# Equilibrium physics help!
• Nov 27th 2009, 07:45 AM
jddery
Equilibrium physics help!
The Cassini probe, mass 5,712 kg, is in a circular orbit with a radius of 1.2×108 m around the planet Saturn. How much work must its engine do to change it to a circular orbit with a radius of 1.1×109 m?
[Mass of Saturn = 5.68×1026 ... | HuggingFaceTB/finemath | |
# Program to check rectangle overlapping.
Algorithm :
• Two rectangles can overlap if one rectangle has 0,1,2,4 corners inside the other rectangle. The check of above mentioned condition could result is many different combinations. Remember overlapping rectangle cannot have 3 corners inside.
• Other way we can say th... | HuggingFaceTB/finemath | |
## Color: decomposing the A transpose matrix and the reflected spectrum
This is the second post about the example on p. 160 of W&S. Here’s the first. (Incidentally, I am going to decompose the reflected spectrum into its fundamental and its residual. I do not think that they did this. Oh, this is what I did for Cohen’... | open-web-math/open-web-math | |
# what is the answerof the TRY THESE (down) on pg.123 of the lesson Comparing Quantities? i need a quick reply plz
Question:
1. Find the selling price (SP) if a profit of 5% is made on(a) a cycle of Rs 700 with Rs 50 as overhead charges.(b) a lawn mower bought at Rs 1150 with Rs 50 as transportation charges.(c) a fan... | HuggingFaceTB/finemath | |
# Area of a sector
How to calculate the area of a sector
0 The area of a sector can be calculated with the following formula:
If calculated in degrees:
A = (Θ ÷ 360) x (Π x r2)
A = 0.5 x r2 x Θ
Where
A = Area
Θ = Angle (measured in radians or degrees)
Π = Pi (3.14)
360 = A Constant
0.5 = A Constant
## Examp... | HuggingFaceTB/finemath | |
In this post, you will get the logic math puzzle with the answer. Math puzzle is one type of brain game. By solving this type of math puzzle you can increase your problem-solving skills. These great math puzzles solve by using your brain. The puzzlers will absolutely enjoy this logical and fun puzzle. Free online math ... | HuggingFaceTB/finemath | |
# Chapter 6 Rational Exponents and Radical Functions - 6.6 Solve Radical Equations - Guided Practice for Examples 3 and 4 - Page 545: 8
1
#### Work Step by Step
We solve the equation using the rules of exponents and radicals. Note, if we wanted to check our solution, we could plug the value we get back into the orig... | HuggingFaceTB/finemath | |
# Integral $\int_{0}^{\pi}\frac{\sin^px}{1+\cos x} dx$
How to solve the following integral, using Euler functions (Gamma, Beta, and Phi):
$$\int_{0}^{\pi}\frac{\sin^px}{1+\cos x} dx$$
I got this integral from "Collection of problems in mathematical analysis, Kudryavtsev. Book 3.". Under the theme "Euler functions".
... | HuggingFaceTB/finemath | |
## Find an area of the triangle with the given vertices?
Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
### Find an area of the triangle with the given vertices?
I missed this part of class and so now cannot understand it at all. We're working with matrices right now, ... | HuggingFaceTB/finemath | |
# Three and a half methods for finding square roots
The easiest way to find a square root in this technological age is to use a calculator. That’s a fine method if what you want to do is simply calculate a square root. However, if what you want to do is understand what a square root is, here are some methods for findi... | HuggingFaceTB/finemath | |
|
Trignometry
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Joined: 11 Apr 2010 Post: 2
11 Apr 2010 11:58:38 IST
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find value of sin 36 , cos 18?
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Trigonometry
find value of sin 36 , cos 18?
Cool goIITian
Joined: 26 Mar 2010
Posts: 79
11 Apr 20... | HuggingFaceTB/finemath | |
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# 3X 4 X 2
3X 4 X 2. Similar problems from web search. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :. How do you multiply (x −2)... | HuggingFaceTB/finemath |
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