All Questions ⁺⁰238211 Questions

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356

0

HELPPPPP

Guest Dec 14, 2020

0

462

2

Help me please

Suppose that when your friend was born, your friend's parents deposited $4000 in an account paying 5.4% interest compounded . What will the account balance be after 19 years?

Guest Dec 14, 2020

0

966

6

Casino Game

Suppose that you are at a casino playing roulette. The strategy you are using is to, before each bet, flip a coin to determine whether to place your bet on red or on black (which, according to the rules of the game, should each have almost a 50% chance read more ..

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Guest Dec 14, 2020

0

2059

1

help me

Five sevenths of what amount is equal to 20?

Guest Dec 14, 2020

0

454

1

probability

A bag contains ten balls, some of which are red and the rest of which are yellow. When two balls are drawn at random at the same time, the probability that both balls are red is 2/9. How many balls in the bag are red?

Guest Dec 14, 2020

0

554

5

probability

Two different 2-digit numbers are randomly chosen and multiplied together. What is the probability that the resulting product has a units digit of 1?

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Guest Dec 14, 2020

0

625

3

+980

Please help

Find a polynomial f(x) of degree 5 such that both of these properties hold:
f(x) is divisible by x^3.
f(x)+2 is divisible by (x+1)^3.

qwertyzz Dec 14, 2020

0

607

1

+980

Please help

Find the range of the function

qwertyzz Dec 14, 2020

0

411

1

number theory

Find the number of integral values of x for which the expression (4^n + 63n - 1)/x has an integer value for every positive integer n.

Guest Dec 14, 2020

0

430

1

really need help

What is the size of the largest subset ,s , of {1,2,3...100} such that no pair of distinct elements of s has a sum divisible by 7

Guest Dec 14, 2020

0

1

623

2

+421

Interesting proof...

Given that x and n are real numbers, prove that $cos(nx) = cos^2(\frac{n}{2} x) - sin^2(\frac{n}{2} x).$

Pangolin14 Dec 14, 2020

0

551

3

Need help

Find the equation of the line that passes through the point (5,8) and has a slope of 2 in slope point form

Guest Dec 14, 2020

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487

1

Simon Factoring Question! - PLZ Help!

Megan is jealous of her older sister's x inch Zac Efron poster, so she cuts out a rectangle around his face, which has dimensions by , and steals it. Megan's older sister decides she's over Zac Efron anyways, read more ..

Guest Dec 14, 2020

0

420

1

number theory

For how many positive integers a<100 will a^3 +21 be divisible by 24?

Guest Dec 14, 2020

0

1267

1

Help needed!!!!!

A bag contains 12 red marbles and 6 blue marbles. Two marbles are selected at random and without replacement. What is the probability that one marble is red and one is blue? Express your answer as a common fraction.

Guest Dec 14, 2020

0

435

1

geometry question

An equilateral triangle ABC shares a common side BC with a square BCDE, as pictured. What is the number of degrees in angle DAE (not pictured)?

read more ..

Guest Dec 14, 2020

Dec 13, 2020

0

1243

1

Geometry Question: Which statements are true? Select all that apply.

A. △FGK≅△FJK read more ..

Guest Dec 13, 2020

0

726

4

help ASAP, there are too many possible values for this

How many prime numbers are divisible by 39?

Guest Dec 13, 2020

0

574

2

pentagon

In pentagon ABCDP, AB = BC = CD = 4, angle ABC = anlge BCD = 90, AP = DP, angle APD = 90. In simple radical form, what is the perimeter of pentagon ABCDP ?

read more ..

Guest Dec 13, 2020

0

425

1

need help pls

Find the largest of three consecutive integers such that twice the greatest integer is the same as 12 less than 4 times the least integer.

Guest Dec 13, 2020

0

483

1

If a store reduces the price by 15% every week, write a function that would represent the sale price after x week

If a store reduces the price by 15% every week, write a function that would represent the sale price after x week

Guest Dec 13, 2020

0

683

1

Geometry Question! :)

In triangle PQR, PQ = 13, QR = 14, and PR = 15. Let M be the midpoint of line QR. Find PM.

This is a hard one

Guest Dec 13, 2020

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