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234799 Questions
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450
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help please
James is playing an arcade game with tokens. In the firstgame, he hits the jackpot and doubles the number of tokens that he has. In the second game, James wins 12 more tokens. In his third and final game, he loses 4 tokens. James now has 170 tokens. How
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Guest
Sep 2, 2020
0
684
1
help plsss
(a) Prove that if the roots of \[x^3 + ax^2 + bx + c = 0\]form an arithmetic sequence, then $2a^3 + 27c = 9ab.$
(b) Prove that if $2a^3 + 27c = 9ab,$ then the roots of \[x^3 + ax^2 + bx + c = 0\]form an arithmetic sequence.
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Guest
Sep 2, 2020
0
347
1
Help
It is possible to place positive integers into the vacant twenty-one squares of this grid so that the numbers in each row and column form an arithmetic sequence. Find the number that must occupy the vacant square marked by the heart.
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Guest
Sep 2, 2020
0
428
1
quadratic
If (x - 3)(4x + 9) = ax^2 + bx + c, then find a + b + c.
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Guest
Sep 2, 2020
0
434
1
help please
A hockey team played a total of 136 games last season. The number of games they won was 20more than three times of the number of games they lost. How many games did they win?
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Guest
Sep 2, 2020
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298
0
geometry question
The two figures below, a regular hexagon and a regular pentagon, have the sameperimeter. What is the length of a side of the pentagon?
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Guest
Sep 2, 2020
0
430
1
precalculus
Find tan theta.
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Guest
Sep 2, 2020
0
429
1
Algebra
if x = -8 and y =9 what is xy
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Guest
Sep 2, 2020
0
507
1
+1124
Hi friends,
Hi friends,
Please help me with this one:
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juriemagic
Sep 2, 2020
0
458
1
help me please
A coin purse contains a mixture of nickels, dimes, and quarters. The coins have a total value of $4.25. There are 3 times more nickels than the number of dimes, and the number of quarters is 7 more than the number of dimes. Determine the number of nickels,
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Guest
Sep 2, 2020
0
623
5
A is an integer that reads the same forwards and backwards. How many positive 3-digit palindromes are multiples of 3?
A is an integer that reads the same forwards and backwards. How many positive 3-digit palindromes are multiples of 3?
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Guest
Sep 2, 2020
0
537
2
Need help as soon as possible
Find angle Y
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Guest
Sep 2, 2020
0
1066
4
please help!
Given the points C(-1,-5) and D(-7,-11), find the coordinates of point E on CD such that the ratio of CE to ED is 5:3
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Guest
Sep 2, 2020
0
1466
3
coordinates
Given the points J(4,-7) and L(-2,13), find the coordinates of point K on JL such that the ratio of JK to JL is 1:4
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Guest
Sep 2, 2020
0
354
2
please help
The measure of angle B in a triangle is 4 more than twice the measure of angle A. The measure of angle C is 30 less than 3 times the measure of angle A. Find the measure of each angle.
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Guest
Sep 2, 2020
0
409
1
please help
Emilio is ordering a single-topping pizza to share with friends. There are 3 toppings to choose from and 10 crust choices. For the cheese, Emilio can choose one of the 9 options. Lastly, there are 3 sauces to choose from. How many different pizzas can Emilio
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Guest
Sep 2, 2020
0
465
1
please help!
i don't know how to do this. if somebody could walk me through it, that would be great!
(8/125)^-1/3!
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Guest
Sep 2, 2020
0
528
1
+212
help pls
There are 15 skaters in the Olympic women's competition, including 4 Americans. The gold medal goes to first place, silver to second, and bronze to third. In how many ways can the medals be awarded to three of the 15 skaters?
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Filliqq
Sep 2, 2020
Sep 1, 2020
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338
1
function problem
Which function is graphed?
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Guest
Sep 1, 2020
0
543
1
HELP PLEASE. question is different from before
I have 5 marbles numbered 1 through 5 in a bag. Suppose I take out two different marbles at random. What is the expected value of the sum of the numbers on the marbles?
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Guest
Sep 1, 2020
0
914
2
x and y are two positive integers such that x^2 + y^2 = 1753 and x^3 + y^3 = 52451. Find x + y.
x and y are two positive integers such that x^2 + y^2 = 1753 and x^3 + y^3 = 52451. Find x + y.
Thanks for helping!
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Guest
Sep 1, 2020
0
329
0
Directriz
¿Como hallar la directriz de una parabola?
Guest
Sep 1, 2020
0
456
1
Plz help ASAP
I need to find angles.
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Guest
Sep 1, 2020
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