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Post New Question
All Questions
+0
234773 Questions
0
457
1
+236
Simplify multistep SQRT
Simplify: .
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Choff
Feb 22, 2021
0
453
1
+1678
algebra
What is the sum of all the x-values that satisfy the equation $5 = \dfrac{x^3 - 2x^2 -8x}{x+2}$
CubeyThePenguin
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wiseowl
Feb 22, 2021
+1
455
1
+501
Quadratic Formula/Discriminant
If the roots of the quadratic equation $\frac12x^2+99x+c=0$ are $x=-99+\sqrt{8001}$ and $x=-99-\sqrt{8001}$, then what is the value of c?
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ellapow
Feb 22, 2021
0
472
1
+1678
factors
What is the number of total factors for (a^3b^5)^4 if a and b are two different primes?
CubeyThePenguin
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wiseowl
Feb 22, 2021
+1
410
1
+147
rationalizing denominators
Simplify $\frac{\sqrt{72}}{\sqrt{10}}$. Your answer should have an integer denominator.
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powclaire
Feb 22, 2021
-1
399
1
+206
advanced system of equations
Jerry is presently twice as old as his brother and six years older than his sister. How many years from now will Jerry's age be $\frac{2}{3}$ of the combined ages of his brother and sister at that time?
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oliviapow06
Feb 22, 2021
0
393
1
+1678
fraction
A man loses $\frac{1}{3}$ of money in first round,$\frac{3}{5}$ of remaining in second,$\frac{4}{7}$ of remaining in third.Find the amount he is left with.
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wiseowl
Feb 22, 2021
+1
372
1
+501
domain and range
If $f(x)$ is a function whose domain is $[-1,9]$, and $g(x)=f(x^2)$, then the domain of $g(x)$ is an interval of what width?
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ellapow
Feb 22, 2021
+1
504
1
+147
Graphing Functions
If $f(x)=f(2-x)$ for all $x$, then what line is necessarily an axis of symmetry of the graph of $y=f(x)$? (Give the simplest equation of this line.)
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powclaire
Feb 22, 2021
-1
392
1
+206
For real numbers $x$, let
For real numbers $x$, let
\[f(x) = \left\{
\begin{array}{cl}
x+2 &\text{ if }x>3, \\
2x+a &\text{ if }x\le 3.
\end{array} <#> \right.\]
What must the value of $a$ be to make the piecewise function
read more ..
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oliviapow06
Feb 22, 2021
+2
417
1
+102
Help Please - Explanation
I have this problem, and I got the answer , which apparently is wrong. I don't know why. Here is my explanation:
I think it doesn't give enough information, because what happens if is negative? Then the area would increase instead.
read more ..
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AnxiousLlama
Feb 22, 2021
0
425
1
precalc
In the movie Star Wars, Luke must hit a small target on the Death Star by flying a horizontal distance to reach the target. When the target is sighted, the onboard computer calculates the angle of depression to be 28 degrees. If, after flying
read more ..
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Guest
Feb 22, 2021
0
361
1
how to count
Find the number of perfect squares and cubes between -2021 and 2021.
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Guest
Feb 22, 2021
0
373
2
logarithm
For what x will $7-\log_{36}{x}+\frac{13}{2}=13$ ?
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Guest
Feb 22, 2021
0
486
3
just pls help me
We call a number peachy if every digit in the number is either a 3 or next to a 3 For example, the numbers 333, 83, 303 and 3773 are all peachy, but the numbers 32523, 786, 340 and 3999 are not peachy.
How many positive
read more ..
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Guest
Feb 22, 2021
+1
446
2
+568
geometry
Circle O and circle P, with radii 3 and 5, respectively, are both tangent to line l at H. Enter all possible lengths of OP separated by commas.
thanks in advance to anyone who answers!
~ iamhappy
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iamhappy
Feb 22, 2021
0
341
1
three consecutive odd integers
Find three consecutive odd integers such that the sum of the first, two times the second and three times the third is 34.
ElectricPavlov
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Guest
Feb 22, 2021
Feb 21, 2021
+1
471
3
+256
Geometry Problem
An archaeologist finds a piece of an ancient wheel. In order to find the diameter of the wheel,
she marks three points A, B and C on the arc of the wheel so that AB = AC. If AB = 13 and BC = 24,
find the diameter of the wheel.
read more ..
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BWStar
Feb 21, 2021
0
404
1
greatest common factor
One factor of the expression is (x + 3), what is the other factor?
2x3 + 6x2 + 10x + 30
ElectricPavlov
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Guest
Feb 21, 2021
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