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821

A student applies to four colleges

A student applies to four colleges, all of which decide admissions through random lotteries. The probability of admissions to each college is given in the table below. If the student applies to all four of these colleges, what is the probability that he read more ..

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Guest May 22, 2021

843

+14

A science teacher is arranging her books on a shelf. She has 4 Astronomy books, 3 Biology books, and 2 Chemistry books. How many ways can sh

A science teacher is arranging her books on a shelf. She has 4 Astronomy books, 3 Biology books, and 2 Chemistry books. How many ways can she arrange these books on the shelf if the books from each subject must be together?

help read more ..

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lycheeeee May 22, 2021

646

Let p(x) = x^(2) , q(x) = 2x^(3)+ 1, and r(x) = 7x^(4) - 5x^(3) - 6x - 2. Find p(q(x)) + r(x).

Let p(x) = x^(2), q(x) = 2x^(3)+ 1, and r(x) = 7x^(4) - 5x^(3) - 6x - 2. Find p(q(x)) + r(x).

halp

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Guest May 22, 2021

868

How many ways can Amir, Bin, Charles, and Daria stand in a line if Amir and Bin refuse to stand next to each other?

How many ways can Amir, Bin, Charles, and Daria stand in a line if Amir and Bin refuse to stand next to each other?

help

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Guest May 22, 2021

597

+14

Of the 30 students in my class, 11 practice taekwondo, 11 play piano, and 20 take lessons in math. 4 students play piano and go to math, 3 s

Of the 30 students in my class, 11 practice taekwondo, 11 play piano, and 20 take lessons in math. 4 students play piano and go to math, 3 students do taekwondo and play piano, 5 students go to math and practice taekwondo, and 3 students do none of these. read more ..

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lycheeeee May 22, 2021

552

Counting

How many non congruent triangles with positive integer side lengths have perimeter less than 18?

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Guest May 22, 2021

500

+48

please help!

x y and z are three points on a unit sphere. the space distance between any pair of the three points is square root 2. an ant can only crawl on the surface of the sphere. the ant starts from point x, passes through points y and z, and then returns to x. read more ..

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someonewhodoesmath May 22, 2021

594

+130

something

We draw a card from a standard deck. What is the probability that it is a Jack, Queen, King, or is it red?

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mintjellyxd May 22, 2021

553

+130

again, probability

I roll a standard 6-sided die 6 times in a row. What is the probability that the numbers alternate between odd and even?

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mintjellyxd May 22, 2021

743

+130

probability

I have 2 standard, 6-sided dice; one is brown, and the other is black. I roll them both. What is the probability that the sum of the numbers that I roll is less than 4?

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mintjellyxd May 22, 2021

823

+130

help thanks

How many ways can Amir, Bin, Charles, and Daria stand in a line if Amir and Bin refuse to stand next to each other?

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mintjellyxd May 22, 2021

583

+130

word problem

A science teacher is arranging her books on a shelf. She has 4 astronomy books, 3 biology books, and 2 chemistry books. How many ways can she arrange these books on the shelf if the books from each subject must be together?

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mintjellyxd May 22, 2021

705

+48

please help with this trig question!

a cylinder and a cone have the same height, but the base radius of the cylinder is only half of that cone. If the volume of the cylinder is 1, then what is the volume of the cone?

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someonewhodoesmath May 22, 2021

687

help

The circle (x + 3)2 + (y − 4)2 = 36 and the line 3x − 4y + 5 = 0 intersect twice as shown below. What is the greatest distance from a point on the circle to the line?

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Guest May 22, 2021

374

2 part question

Out club has 10 members, and we need to appoint a president, a vice-president, and a secretary. How many ways can we do it if:
A) Each member can hold at most one office?

B) Members can hold any number of offices? read more ..

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Guest May 22, 2021

491

+407

Help me PLEASE! probability

Rolling four standard dice, what is the probability that the product of the four results is even?

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ss333 May 22, 2021

717

counting question

How many multiples of 9 are between 100,000 and 100,185?

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Guest May 22, 2021

357

1. A sculptor is planning to make two triangular prisms out of steel. The sculptor will use TriangeABC for the bases of one prism and

1. A sculptor is planning to make two triangular prisms out of steel. The sculptor will use TriangeABC for the bases of one prism and TriangleDEF for the bases of the other prism.
read more ..

Guest May 22, 2021

505

+407

Help ASAP Please!!!

The Village League uses a best-two-out-of-three series to crown its champion. If the probability of Team Alpha beating Team Beta is 60% for every game, what is the probability that Beta wins the championship? Express your answer as a common fraction. read more ..

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ss333 May 22, 2021

347

Hi, a repost

Find the polynomial $p(x)$ such that \[p(p(x)) = xp(x) + x^2.\]

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Guest May 22, 2021

542

In right tringle ABC, angle B is 90 degreed. If tan C = 2.4. Find cos A. No caculator

In right triangle ABC, angle B is 90 degrees. If tan C = 2.4. Find cos A. No caculator

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Guest May 22, 2021

562

+48

please help with trig question!

The side lengths of a cyclic quadrilateral ABCD are provided in the diagram. Find BD^2.
The picture is here as I can't upload it for some reason: https://cutt.ly/auSLG9T

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someonewhodoesmath May 22, 2021

476

Pls help I need to pass the class

For a certain value of k, the system
\begin{align*}
x + y + 3z &= 10, \\
-4x + 3y + 5z &= 7, \\
kx + z &= 3
\end{align*} <#> has no solutions. What is this value of k?

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Guest May 22, 2021

582

help thanks

Find all real solutions to the equation
x^4 - 40x^3 + 600x^2 - 4000x + 9375 = 0

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Guest May 22, 2021

All Questions ⁺⁰237826 Questions

A student applies to four colleges

A science teacher is arranging her books on a shelf. She has 4 Astronomy books, 3 Biology books, and 2 Chemistry books. How many ways can sh

Let p(x) = x^(2) , q(x) = 2x^(3)+ 1, and r(x) = 7x^(4) - 5x^(3) - 6x - 2. Find p(q(x)) + r(x).

How many ways can Amir, Bin, Charles, and Daria stand in a line if Amir and Bin refuse to stand next to each other?

Of the 30 students in my class, 11 practice taekwondo, 11 play piano, and 20 take lessons in math. 4 students play piano and go to math, 3 s

Counting

please help!

something

again, probability

probability

help thanks

word problem

please help with this trig question!

help

2 part question

Help me PLEASE! probability

counting question

1. A sculptor is planning to make two triangular prisms out of steel. The sculptor will use TriangeABC for the bases of one prism and

Help ASAP Please!!!

Hi, a repost

In right tringle ABC, angle B is 90 degreed. If tan C = 2.4. Find cos A. No caculator

please help with trig question!

Pls help I need to pass the class

help thanks

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