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All Questions
^{+0}
203047 Questions
0
101
2
geometry
Five friends live on the same street. Their houses are at points A, B, C, D, and E, with the distances shown.
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Guest
Aug 5, 2021
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51
0
help math
Mikey has ten marbles in a bag with the number 5 on 8 faces and the number 8 on 2 faces. What is the expected value of the number present when one marble is selected from the bag
Guest
Aug 5, 2021
+1
81
2
+199
Method
Complete.
5 stars = 3 balloons
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KINGCASH
Aug 5, 2021
+2
68
2
+152
Mathematics
Gavin said that he had more books than anyone in his class. Jacob said that he had more books. Peter said that he had even more books. Jacob has 20 books. Gavin has 3 more books than Jacob. Peter has 8 fewer books than Gavin. How many books does Peter have?
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Whayousayy
Aug 5, 2021
0
64
1
Fractions
Faridah baked some cookies. 3/8 of them were coconut cookies and 2/5 of the remainder were peanut cookies. The rest were chocolate cookies. What fraction of the cookies were chocolate cookies?
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Guest
Aug 5, 2021
0
57
1
Fraction Word Problem
Ali and Ben shared a total cost of a present. Ali paid $15 more than 3/8 of the cost of the present. Ben paid $25. How much did the present cost?
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Guest
Aug 5, 2021
0
84
2
Number Theory
If I expand 25*24*23* ... *12*11*10, how many zeros are there at the end of the number I get?
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Guest
Aug 5, 2021
0
61
1
ratio problem
Ms. Salazar's rice mixture consists of seven parts of white rice to three parts ofwild rice. If she makes 30 cups of the mixture, how many cups of white rice will she use? How many cups of wild rice will she use?
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Guest
Aug 5, 2021
0
72
1
help probability
In a certain Algebra 2 class of 30 students, 7 of them play basketball and 11 of themplay baseball. There are 5 students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball?
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Guest
Aug 5, 2021
Aug 4, 2021
0
78
3
Counting
Cory has 3 apples, 2 oranges, 2 bananas, and 4 strawberries. If Cory eats one piece of his fruit per day and the pieces of fruit within each category are indistinguishable, in how many orders can Cory eat the fruit?
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Guest
Aug 4, 2021
0
61
1
Quadratic
If we express 2x^2 + 6x + 11 in the form a(x - h)^2 + k, then what is h?
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Guest
Aug 4, 2021
0
86
3
Help ASAP I tried a lot of ways I just couldn't find the correct answer!
Given that $f(x) = x^{-1} + \frac{x^{-1}}{1+x^{-1}}$, what is $f(f(-2))$? Express your answer as a common fraction.
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Guest
Aug 4, 2021
0
58
1
quick question
When the expression $(2x^4+3x^3+x-14)(3x^{10}-9x^7+9x^4+30)-(x^2+5)^7$ is expanded, what is the degree of the resulting polynomial?
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Guest
Aug 4, 2021
0
58
1
help geometry
The measure of angles of quadrilateral ABCD form the arithmetic sequence ∠A, ∠B, ∠C, ∠D. If the measure of angle B is 72 degrees what is the degree measure of angle D?
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Guest
Aug 4, 2021
0
76
1
+41
CPhill or anybody help please!!!
If $f(x) = -7x^4 + 3x^3 + x - 5$, and $g(x)$ is a polynomial such that the degree of $f(x) + g(x)$ is 1, then what is the degree of $g(x)$?
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CENTTRAL
Aug 4, 2021
0
64
1
help thanks
I have $8$ pieces of strawberry candy (all identical) and $7$ pieces of rhubarb candy (all identical). Find the number of ways I can distribute this candy to $5$ children.
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Guest
Aug 4, 2021
0
58
1
need help
What is the value of n if 2^10 * 4^20 * 8^40 = 2^n?
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Guest
Aug 4, 2021
0
78
2
Help, I just need some help
The units digit of a perfect square is 6. What are the possible values of the tens digit?
I know the answer is 1,3,5,7,9 but I need to be able to prove it
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Guest
Aug 4, 2021
0
69
2
Help! Answer needed. Please help! Give correct answer! Please.
For a certain value of $k$, the system \begin{align*} x + y + 3z &= 10, \\ -4x + 3y + 5z &= 7, \\ kx + z &= 3 \end{align*}has no solutions. What is this value of $k$?
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Guest
Aug 4, 2021
0
57
1
Help pleasee, having trouble.
This week in class, we covered one way to sum an arithmetico-geometric series. Now we're going to cover a different approach. Let $|r| < 1$, $$S = \sum_{k=0}^{\infty} r^k,$$and $$T = \sum_{k=0}^{\infty} k r^k.$$Our approach is to write $T$ as a geometric
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Guest
Aug 4, 2021
0
59
1
System
Find the value of $a$ so that the system has no solutions.
y = 11x+14
2y-4 = ax +5y+3
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Guest
Aug 4, 2021
0
52
1
Question:
Find a polynomial $f(x)$ of degree $5$ such that both of these properties hold: $\bullet$ $f(x)$ is divisible by $x^3$. $\bullet$ $f(x)+2$ is divisible by $(x+1)^3$. Write your answer in expanded form (that is, do not factor $f(x)$).
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Guest
Aug 4, 2021
0
79
1
HELP!
What is the smallest distance between the origin and a point on the graph of $y=\dfrac{1}{\sqrt{2}}\left(x^2-3\right)$?
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Guest
Aug 4, 2021
0
84
1
HELP!
If $n \equiv 2 \pmod{7}$, then find the remainder when $(n + 2)(n + 4)(n + 6)$ is divided by 7.
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Guest
Aug 4, 2021
0
45
0
Graphing
Given that the point (8,8) is on the graph of y= f(sqrt(x)/4), there is one point that must be on the graph of y=f(x). What is the sum of coordinates of that point?
Guest
Aug 4, 2021
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