All Questions

651

Very challenging proof question.

Prove that is divisible by 323.

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Guest Jun 24, 2020

751

+318

Calc keep getting this marked wrong:(

Find a function f(x) such that f'(x)=8x^2+5 and f (0) =1

:( read more ..

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mharrigan920 Jun 24, 2020

612

help

Factor

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Guest Jun 24, 2020

636

help

FInd the largest prime that divides 27! + 28!.

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Guest Jun 24, 2020

1250

+335

Distance in a Plane

The points $(-3,2)$ and $(-2,3)$ lie on a circle whose center is on the $x$-axis. What is the radius of the circle?

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Rayjplayz Jun 24, 2020

631

please help

What is the smallest positive multiple of hundred which can be expressed as the product of two consecutive integers?

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Guest Jun 24, 2020

1238

Help!

The circumference of Earth is 40,000 kilometers. How many trips around Earth could you take if you travel one billion meters?

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Guest Jun 24, 2020

639

Help ;-;

Suppose x=x+1. For what value of x is f(f(...(f(x))...)=0? with 2015 f's.

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Guest Jun 24, 2020

465

Help me please!

Compute the sum

Please write all of the steps! There was another post on this question, but I didn't get how the guest got the answer.

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Guest Jun 24, 2020

675

+34

Send help please!

My brain isn't functioning right now...

On each of the first three days of January, there is a 1/3 chance that it will snow where Bob lives. On each of the next four days, there is a 1/4 chance that it will snow. What is the probability read more ..

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AppIePi Jun 24, 2020

534

please help!

In how many ways can the 12 face cards from a standard deck can be arranged such that all the Queens are before all the Kings? I have no idea how to do this problem.

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Guest Jun 24, 2020

811

+134

Please help me

A box contains 24 tiles. Each tile has certain properties:
Each tile is made of wood or plastic.
Each tile is red, yellow, or blue.
Each tile is a triangle, square, pentagon, or circle.
There is exactly one tile for each combination read more ..

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ItzMe Jun 24, 2020

440

30 mins due. Thanks for the help

The inverse of f(x) = (2x-1)/x+5 may be written in the form f^-1 (x) = (ax + b)/(cx + d), where a,b,c, and d are real numbers. Find a/c.

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Guest Jun 24, 2020

672

help

Jack is 13 years older than Bao. In 8 years, he will be twice as old as Bao. How old is Jack now?

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Guest Jun 24, 2020

558

quadratic

Find the values of k for which (k + 4)x^2 + (k + 1)x = -1 has equal roots.

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Guest Jun 24, 2020

627

calc- integration

it's divergent, but i'm not sure how to actually integrate that thing inside

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Guest Jun 24, 2020

549

Help...

Denali and Nate work for a dog walking business and are paid for each dog they walk. Denali is responsible for 16 dogs and Nate is responsible for 12 dogs. Under the company's new policy, they will be assigned or unassigned new dogs in groups read more ..

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Guest Jun 24, 2020

1293

HELP ME PLZ ASAP!!!!

Each solution to x^2 + 5x + 8 = 0 can be written in the form x = a+bi, where a and b are real numbers. What is a + b^2?
The quadratic x^2-3x+1 can be written in the form ,(x+b)^2+c where b and c are constants. read more ..

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Guest Jun 24, 2020

638

help!

If the letters TRAPDOOR are randomly arranged in a row, find the probability that the two R's are adjacent and the two O's are adjacent.

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Guest Jun 24, 2020

830

+2096

Shifting Parabolas

A quick question...

When shifting parabolas, why do we represent "shifting to the RIGHT by some number" as "x minus that number"? Shouldn't it be represented as "x PLUS that number"?
read more ..

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CalTheGreat Jun 24, 2020

565

help

Solve the inequality -2(x - 3)(x + 4) > 0.

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Guest Jun 24, 2020

722

geometry

A rectangular box has two square ends . Its length is 15 cm grater than the breadth and the total length of its edges is 2.04m .Find its volume .

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Guest Jun 24, 2020

589

help me please

please give thorough explanations, i am confused about how to solve this properly... I thought using a^2 - b^2 = (a - b)(a + b) would work, but I don't think it is the most efficient way.

(a) Compute the sum: read more ..

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Guest Jun 24, 2020

603

please help

I'm confused on these arrangement problems:

9 different books are to be arranged on a bookshelf. 4 of these books were written by Shakespeare, 2 by Dickens, and 3 by Conrad. How many possible permutations are there if the books by read more ..

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Guest Jun 24, 2020

All Questions ⁺⁰237665 Questions

Very challenging proof question.

Calc keep getting this marked wrong:(

help

help

Distance in a Plane

please help

Help!

Help ;-;

Help me please!

Send help please!

please help!

Please help me

30 mins due. Thanks for the help

help

quadratic

calc- integration

Help...

HELP ME PLZ ASAP!!!!

help!

Shifting Parabolas

help

geometry

help me please

please help

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