All Questions ⁺⁰237643 Questions

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201

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+24

Please help - geometry

In the diagram below, point is on line segment , and bisects (meaning that splits into two congruent angles). If and , then what is in degrees?
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puzzle70 Jan 22, 2023

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170

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Probability (Functions of random vectors)

Random vector (X,Y) has uniform distribution on the square
.
Find the density function of a random variable
. read more ..

Guest Jan 22, 2023

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171

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Algebra

Need help soon

A magician makes potions by combining maple syrup from a magical maple tree with ordinary water. The magician starts with a large supply of two potions: a red potion, which is 50% magical syrup by volume (and the rest read more ..

Guest Jan 22, 2023

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191

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Probability

can anyone help with a problem

A stick is broken at two points, at random. If the length of the stick is 6, then what is the probability that all three resulting pieces are shorter than 3 units?

Guest Jan 22, 2023

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196

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Need help with geometry

What is the mean of the measures of the three exterior angles of a triangle if two of the interio angles have measures of 63 degrees and 72 degrees?

Guest Jan 22, 2023

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199

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Help please - geometry

In the diagram, what is the measure of in degrees?

https://latex.artofproblemsolving.com/2/6/0/26018a9f37226eb478d5c3ef7078a9bc1857e700.png

Guest Jan 22, 2023

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167

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Counting

Need help with this how

(a) Find the number of ways that Magnus can give out 20 identical stickers to 5 of his friends. (Not everyone has to get a sticker.)
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Guest Jan 22, 2023

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187

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Help, GEOMETRY!!

In the figure below, is a point on segment such that and is not on
Line segments and intersect at

https://latex.artofproblemsolving.com/5/c/a/5ca5a369cc108d2079bce7ee6ef51af69b30df3a.png read more ..

Guest Jan 22, 2023

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197

2

+24

Help, GEOMETRY question *

In the diagram below, Find angle in degrees.

https://latex.artofproblemsolving.com/e/d/c/edcb38997ad78e75d0da535c9081455a8a24f3de.png

puzzle70 Jan 22, 2023

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191

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Counting

help this problem plz

In the olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are skaters, including Americans, in how many ways can the medals be awarded read more ..

Guest Jan 22, 2023

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160

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counting

Help I have spent a long time on this

I run a book club with n people, not including myself. Every day, for 100 days, I invite members in the club to review a book. What is the smallest positive integer n so that I can avoid ever read more ..

Guest Jan 22, 2023

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152

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Counting

Need answer fast

Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3 read more ..

Guest Jan 22, 2023

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202

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Counting

Please help with this so hard

We want to divide 10 dogs (including Fluffy and Nipper) into three groups, one with 3 dogs, one with 5 dogs, and one with 2 dogs. How many ways can we form the groups such read more ..

Guest Jan 22, 2023

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194

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Help

Azar, Carl, Jon, and Sergey are the four players left in a singles tennis tournament. They are randomly assigned opponents in the semifinal matches, and the winners of those matches play each other in the final match to determine the winner of the tournament. read more ..

Guest Jan 22, 2023

+1

178

2

Let $d$ be a positive number such that when $109$ is divided by $d$, the remainder is $4.$ Compute the sum of all possible two-digit values

Let be a positive number such that when is divided by , the remainder is Compute the sum of all possible two-digit values of .

Guest Jan 22, 2023

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224

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+239

Rational Numbers

Can you help please thanks

OldTimer Jan 22, 2023

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152

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Probability

Help with this very hard problem

Triangle XYZ is equilateral, with O as its center. A point P is chosen at random. Find the probability that P is closer to point O than to any of the side lengths.

Guest Jan 22, 2023

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157

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Distributions

help need answers fast

read more ..

Guest Jan 22, 2023

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192

1

Probability

How do you solve this

The following cards are dealt to three people at random, so that everyone gets the same number of cards. What is the probability that everyone gets a red card?

Guest Jan 22, 2023

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187

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Counting problem

Help having hard time

Let n be a positive integer. Let k be a positive integer.
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Guest Jan 22, 2023

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165

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Complex numbers

please help with hard complex

Describe all solutions to zw - 3w - 2iw + 4z = 7iw + 5w + 11iz - 13 + 15i
where z and w are complex numbers.

Guest Jan 22, 2023

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