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All Questions
+0
230645 Questions
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107
0
algebra
Let a and b be real numbers such that a - b = 4 and a^3 + b^3 = 52 + a^2 - b^2.
(a) Find all possible values of ab
(b) Find all possible values of a + b.
(c) Find all possible values of a and b.
Guest
Sep 13, 2022
0
115
0
quadratic
Let a and b be the roots of the quadratic 2x^2 - 8x + 7 = x^2 - 14x + 1. Compute a^3 + b^3.
Guest
Sep 13, 2022
0
118
0
quadratic
Let a and b be the roots of the quadratic x^2 - 5x + 3 = 2x^2 - 11x + 14. Find the quadratic whose roots are a^2 and b^2.
Guest
Sep 13, 2022
0
179
0
Triangle ABC has vertices at A (3, 5), B (5, 7) and C (7, 5). Lisa believes that the perimeter of ΔABC&n
Triangle ABC has vertices at A (3, 5), B (5, 7) and C (7, 5).
Lisa believes that the perimeter of ΔABC is 12 units.
Why is Lisa incorrect?
A.Because AB =
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Guest
Sep 13, 2022
0
122
0
help logarithims
logx 8=0.5?
A.4
B.16
C.64
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Guest
Sep 13, 2022
0
196
1
The pay rate and hours worked are given below. Use this information to determine the following. Make sure to include decimals and appropriat
The pay rate and hours worked are given below. Use this information to determine the following. Make sure to include decimals and appropriate zeros. the gross pay federal tax (assuming 20% of gross earnings) state tax (assuming 6% of gross earnings) social
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Guest
Sep 13, 2022
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163
1
- 5^2 - 5
-5^2 - 5
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Guest
Sep 13, 2022
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149
1
algebra
1.x-7
2. mp+nq
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Guest
Sep 13, 2022
0
213
2
Please help with working. Thanks
There were twice as many chocolate tarts as apple tarts in a shop at first. 3/4 of the chocolate tarts and 2/3 of the apple tarts were sold in the morning.
(a) What fraction of the total number of tarts were left unsold in the morning?
(b)
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Guest
Sep 13, 2022
Sep 12, 2022
+1
332
1
+589
Given $f(x) = \frac{2x-3}{x+1},$ find the value of $a$ such that $f(3a-2) = 1.$
Given $f(x) = \frac{2x-3}{x+1},$ find the value of $a$ such that $f(3a-2) = 1.$
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weredumbmaster22
Sep 12, 2022
+1
300
1
+589
ind $\frac{x}{y}$ if \begin{align*} 2\sqrt{x} + \frac1y &= 13 \\ 8\sqrt{x} - \frac 3y &= 3. \end{align*}
ind $\frac{x}{y}$ if \begin{align*} 2\sqrt{x} + \frac1y &= 13 \\ 8\sqrt{x} - \frac 3y &= 3. \end{align*}
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weredumbmaster22
Sep 12, 2022
+1
242
1
+589
Find $x + \dfrac 1x$ if\[3x+\frac{2}{x}-4=2(x+9)-\left(7-\frac{1}{x}\right).\]
Find $x + \dfrac 1x$ if\[3x+\frac{2}{x}-4=2(x+9)-\left(7-\frac{1}{x}\right).\]
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weredumbmaster22
Sep 12, 2022
+1
319
1
+589
Define $g(x)$ as follows: \[ g(x)= \begin{cases} -1, & \text{if } x < 0,\\ 0, & \text{if } x = 0, \\ 1,
Define $g(x)$ as follows: \[ g(x)= \begin{cases} -1, & \text{if } x < 0,\\ 0, & \text{if } x = 0, \\ 1, & \text{if } x > 0. \\ \end{cases} \]Let $f(x) = g(x+1) - g(x-1).$ Compute $f\left(\frac12\right) + f\left(-\frac12\right).$
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weredumbmaster22
Sep 12, 2022
0
149
1
help pls
Define g(x) as follows:
Let f(x) = g(x+1) - g(x-1). Compute f(1/2) + f(-1/2).
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Guest
Sep 12, 2022
0
142
1
functions
If f(x) = 3x - 7, then what is f^-1(f^-1(-1))?
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Guest
Sep 12, 2022
-2
246
2
+30
Help!
I'm stuck on this problem
Sam decides to start a rumor. Sam tells the rumor to her three friends. Each of Sam's three friends then tells the rumor to three friends who have not heard the rumor. This continues for five total cycles. Sam telling her
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NJColonial6
Sep 12, 2022
0
240
3
Twice the sum of consecutive numbers n and is 510.
Twice the sum of consecutive numbers n and is 510.
how to solve?
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Guest
Sep 12, 2022
0
162
1
math
I am a number between 2 000 000 and 3 000 000 all my digit are even all the digit in my thousand period are the same all the digit in my units period are the same the sum of my digit is 38 what number am i?
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Guest
Sep 12, 2022
+1
183
1
+656
Um pls halp
I am going to buy exotic fruits. Dragonfruit costs x-4 dollars. Starfruit is five dollars less expensive than rambutan. Rambutan costs 2x dollars more than dragonfruit. How much does it cost to buy one rambutan, two starfruits, and three dragonfruits? Your
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Keihaku
Sep 12, 2022
0
194
2
+656
My brain is DED pls halp me
Find the integer that lies between
and
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Keihaku
Sep 12, 2022
0
126
0
Whe do you use inverse operations? What does it do to an equation?
I was solving a few problems for X (Algerbraic expressions), and pretty flunked them all. For the first equation, i mathwayd the answer and realized I didnt use inverse operations. For the next equation, I made sure use inverse operations. Ended up
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Guest
Sep 12, 2022
0
118
0
help
f(x)=x^2-4/x^2-9 what describes the end behavior of the function.
A. The function approaches 0 as x approaches -infinity sign and infinity sign.
B. The function approaches 9/4 as x approaches -infinity sign and infinity sign.
C.
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Guest
Sep 12, 2022
0
285
2
$N$ is a four-digit positive integer. Dividing $N$ by $9$, the remainder is $5$. Dividing $N$ by $7$, the remainder is $3$. Dividing $N$ by
$N$ is a four-digit positive integer. Dividing $N$ by $9$, the remainder is $5$. Dividing $N$ by $7$, the remainder is $3$. Dividing $N$ by $5$, the remainder is $1$. What is the smallest possible value of $N$?
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Guest
Sep 12, 2022
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