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Post New Question
All Questions
+0
234777 Questions
-2
401
1
Help
One of the roots of 2x 3 − 9x 2 + 13x + k = 0 is x = 2. Find the other two roots.
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Guest
Feb 22, 2021
0
892
1
Let f(x) = 3x + 2 and g(x) = x^2 - 5x - 1. Find f(g(x))
Let f(x) = 3x + 2 and g(x) = x^2 - 5x - 1. Find f(g(x))
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Guest
Feb 22, 2021
0
491
1
Thanks in advance
Factor ax − 2ay + 2bx − 4by − 3x + 6y.
CubeyThePenguin
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Guest
Feb 22, 2021
0
413
1
Help ASAP
The graph of x 2 − 2x + y 2 + 10y = 0 is a circle. Find the radius of this circle.
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Guest
Feb 22, 2021
0
1248
1
Math
One group (A) contains 510 people. One-third of the people in group A will be selected to win $50 fuel cards. There is another group (B) in a nearby town that will receive the same number of fuel cards, but there are 393 people in that group. What will
read more ..
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Guest
Feb 22, 2021
-1
489
2
+206
sum and product of roots
If $(2x+5)(x-3)=14$, find the sum of the possible values of $x$.
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oliviapow06
Feb 22, 2021
0
450
2
+230
dear diary, math is hard
The quadratic $2x^2-3x+27$ has two imaginary roots. What is the sum of the squares of these roots? Express your answer as a decimal rounded to the nearest hundredth.
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wizzymath
Feb 22, 2021
0
368
1
+230
my dearest friends
If $f(x)$ and $g(x)$ are polynomials such that $f(x) + g(x) = -2 + x$, then what is $g(x)$ if $f(x) = x^3 - 2x - 2$?
CubeyThePenguin
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wizzymath
Feb 22, 2021
-1
428
1
+206
rationalizing denominators
Simplify and rationalize the denominator:
$$\frac{1}{1+ \frac{1}{\sqrt{3}+1}}.$$
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oliviapow06
Feb 22, 2021
0
450
1
+230
hey lol
Suppose that $a$ and $b$ are positive real numbers, and let
\[f(x) =
\begin{cases}
\frac{a}{b}x & \text{ if }x\le-4, \\
abx^2 & \text{ if }x>-4.
\end{cases} <#> \]
If $f(-4)=-\frac{60}{13}$ and $f(4)=3120$, what
read more ..
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wizzymath
Feb 22, 2021
0
412
1
+230
help me
On the graph of $y=(x+2)^4-100$, how many points are there whose coordinates are both negative integers?
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wizzymath
Feb 22, 2021
+1
430
1
+501
advanced system of equations
Janice bought 30 items each priced at 30 cents, 2 dollars, or 3 dollars. If her total purchase price was $30.00, how many 30-cent items did she purchase?
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ellapow
Feb 22, 2021
0
289
1
help
Find the savings plan balance after 3 years with an APR of 7 % and monthly payments of $100 .
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Guest
Feb 22, 2021
+1
461
1
+501
Quadratic Formula/Discriminant
Each solution to $x^2 + 5x + 8 = 0$ can be written in the form $x = a + b i,$ where $a$ and $b$ are real numbers. What is $a + b^2$?
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ellapow
Feb 22, 2021
0
460
1
+230
hey heyyyyy
What is the sum of all possible solutions of $\frac{9x}{13}+\frac{13}{9x}=\frac{250}{117x}$?
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wizzymath
Feb 22, 2021
0
383
1
+230
hey my bestest besties
Suppose that $a$ is inversely proportional to $b$. Let $a_1,a_2$ be two nonzero values of $a$ such that $\frac{a_1}{a_2}=\frac{2}{3}$. Let the corresponding $b$ values be $b_1,b_2$. If $b_1,b_2$ are nonzero, find the value of $\frac{b_1}{b_2}$.
read more ..
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wizzymath
Feb 22, 2021
0
372
1
help with algebra
Put the expressions in order from least to greatest value
CubeyThePenguin
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Guest
Feb 22, 2021
0
420
1
help with word problem
The price of 5 citrons and 4 fragrant wood apples is 48 units. The price of 4 citrons andfragrant wood apples is 42 units. Find the price of a citron and the price of a wood apple,
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Guest
Feb 22, 2021
0
243
0
Pls Help
A chicken is located in a 4 * 5 grid on the second column of the second row. How many rectangles can be formed in which every rectangle includes the chicken. I know the answer is 48 because I counted, but I'd like to know a better method of doing this
read more ..
Guest
Feb 22, 2021
0
895
1
word problem
A garden table and a bench cost 685 dollars combined. The garden table costs 35 dollars more than the bench. What is the cost of the bench?
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Guest
Feb 22, 2021
0
298
2
halp!!
Find all complex numbers $z$ such that $z^4 = -4.$
Note: All solutions should be expressed in the form , where and are real numbers.
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Guest
Feb 22, 2021
+1
397
1
+501
rationalizing denominators
Simplify and rationalize the denominator:
$$\frac{1}{1+ \frac{1}{\sqrt{3}+1}}.$$
●
ellapow
Feb 22, 2021
+1
498
1
+147
Quadratic Formula/Discriminant
There are two ${\bf positive}$ integers $c$ for which the equation
$$5x^2+11x+c=0$$
has rational solutions. What is the product of those two values of $c$?
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powclaire
Feb 22, 2021
-1
413
1
+206
rationalizing denominators
Rationalize the denominator: $\sqrt{\frac{3}{8}}.$
CubeyThePenguin
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oliviapow06
Feb 22, 2021
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