All Questions

864

+613

Help please

Let r and s be the roots of y^2-19y+7. Find (r-2)(s-2)

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gueesstt Apr 9, 2018

1544

+613

Help!

Find the largest prime factor of 451^2- 137^2 without using a calculator.

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gueesstt Apr 9, 2018

1448

+1904

A calculus problem

Estimate the instantaneous rate of change for the function f(x)=e^x at x=0, then use this to find an equation for the tangent line. Check your answer by graphing the function and it's tangent line in Desmos. Print out and attach a copy of your read more ..

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gibsonj338 Apr 9, 2018

816

PERMUTATIONS

how many arrangements are there of the letters COMMITTEE where none of the vowels are next to eachother? Thank you!

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Guest Apr 9, 2018

1867

+753

Help! Thanks :)!

For each part of this problem, convert the fraction to a "decimal" in the specified base.
(a) What is 1/2 in base 3?
(b) What is 1/7 in base 8?
(c) What is 1/(b-1) in base b?
Thanks!

Two Quick Questions-I've Tried Already-Just A Little Stuck On Finding Series

Hello, I've tried these problems out already, I'm just a little stuck. I appreciate all your help. Thanks.
(Also, if you can explain how you came up with the answer, that would also be great so that I can learn), Thanks much.
read more ..

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Guest Apr 9, 2018

747

Quadratic inequality

What is the value of b+c, when x^2+bx+c > 0 only when x E (-infty, -2) U (3,infty)?

hectictar ●

Guest Apr 9, 2018

2194

Please help

Paula invests $\$10,\!000$ at the start of a 5 year period at an interest rate of $10\%$. At the end of those 5 years, how much is her investment worth if the interest is compounded quarterly? Express your answer as a dollar value rounded to the nearest read more ..

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Guest Apr 9, 2018

Apr 8, 2018

1990

From the diagram below, find the positive difference in the x-coordinates when lines l and m reach y = 15.

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Guest Apr 8, 2018

1288

Help

Four years ago you invested some money at $10\%$ interest. You now have $\$439.23$ in the account. If the interest was compounded yearly, how much did you invest 4 years ago?

Given that $f(x) = (\sqrt 5)^x$, what is the range of $f(x)$ read more ..

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Guest Apr 8, 2018

1586

Help asap

Suppose $p(x)$ is a function such that $p(x) + (x^5+3x^3+9x) = (7x^3+24x^2+25x+1)$. Express $p(x)$ as a polynomial with the degrees of the terms in decreasing order.

hectictar ●

Guest Apr 8, 2018

867

Parallel and perpendicular slopes?

Given this pair of slopes, what is the value of n if the lines are parallel? What is the value of n if the lines are perpendicular?

,
read more ..

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Guest Apr 8, 2018

1602

Compound interest

A man nearing retirement wants to invest some money in a fund that compounds annually at a rate of 6 percent, so that in five years, he will have at least $100,000. How much money must he invest now to make that happen? (Give your answer to the nearest read more ..

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Guest Apr 8, 2018

2724

Help!

1. Given that $f(x) = (\sqrt 5)^x$, what is the range of $f(x)$ on the interval $[0, \infty)$?
2. When Lauren was born on January 1, 1990, her grandparents put $\$1000$ in a savings account in her name. The account earned $7.5\%$ annual read more ..

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Guest Apr 8, 2018

780

Algbra 2 question

I cannot figure out how to solve and graph this problem. You are desiginnig a parabolic dish to use for cooking on a camping trip. You plan to make the dish 60cm wide and 30cm deep. Where should you locate the cooking grill so that all of the light that read more ..

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Guest Apr 8, 2018

831

Thelma's investments

Thelma invested $50,000 in 3 different investments at 6%, 7%, 9%. She invested $20,000 more in 9% than in 6%. If at the end of one year she received interest of $3,970 on her investments, how much did she invest in each of her 3 investments? Thank you for read more ..

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Guest Apr 8, 2018

938

find a quadratic polynomial p(x) such thath p(2)=0

find a quadratic polynomial p(x) such thath p(2)=0
the title says it all
pls help

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Sirio Apr 8, 2018

678

Question on 'Factorific'

The numbers are written down and some of them are colored blue. A coloring is called factorific if there is at least one blue number, and for each blue number, all of its divisors are also blue.
If Grogg randomly colors some, all, read more ..

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Guest Apr 8, 2018

Apr 7, 2018

1193

+101

Some more hyperbola Ebola

Hyperbola ebola has struck me again! The only cure is an explanation of ths Hyperbola question with steps on how it is done!

find the:
center read more ..

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dom6547 Apr 7, 2018

929

+1378

Help with concept please!

I'm not sure where to start with this problem:

In triangle ABC, the medians line AD, line BE, and line CF concur at the centroid G.
read more ..

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AnonymousConfusedGuy Apr 7, 2018

587

Mod Math

What is the smallest positive N that will satisfy the following modular equation?
25,111^N mod 31 = 1. Thank you for help.

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Guest Apr 7, 2018

-5

904

+73

A pine cone falls from a tree branch that is 144 feet above the ground. Please Help!

A pine cone falls from a tree branch that is 144 feet above the ground. After how many seconds does the pine cone land on the ground?

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GAMEMASTERX40 Apr 7, 2018

1272

+753

Help Again! :)

Find the largest prime number (in decimal form) that divides the sum,

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MIRB16 Apr 7, 2018

-4

1281

+73

The shape of an entrance to a tunnel can be modeled by the graph.

The shape of an entrance to a tunnel can be modeled by the graph of the equation y = -0.2x(x - 20) where x and y are measured in feet. On a coordinate plane, the ground is represented by the x-axis. How wide is the tunnel at its base? Explain how you read more ..

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GAMEMASTERX40 Apr 7, 2018

920

+753

I need help :)

Suppose that a and b are digits in base d > 6 such that . Find a_d - b_d in base d. thanks!

All Questions ⁺⁰237808 Questions

Help please

Help!

A calculus problem

PERMUTATIONS

Help! Thanks :)!

Two Quick Questions-I've Tried Already-Just A Little Stuck On Finding Series

Quadratic inequality

Please help

From the diagram below, find the positive difference in the x-coordinates when lines l and m reach y = 15.

Help

Help asap

Parallel and perpendicular slopes?

Compound interest

Help!

Algbra 2 question

Thelma's investments

find a quadratic polynomial p(x) such thath p(2)=0

Question on 'Factorific'

Some more hyperbola Ebola

Help with concept please!

Mod Math

A pine cone falls from a tree branch that is 144 feet above the ground. Please Help!

Help Again! :)

The shape of an entrance to a tunnel can be modeled by the graph.

I need help :)

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