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OverLord2011 [107]
3 years ago
6

Coach kunal stacks all of the tennis balls in a square pyramid. The number of tennis balls, P(n), in n layers of the square pyra

mid is given by P(n) = P(n - 1) + n^2. Which could not be the number of tennis balls Coach Kunal has? A. 30 B. 5 C. 14 D. 9
Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

Answer:

Answer A. 30 I believe.

Step-by-step explanation:

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Factor the polynomial completely.<br><br> 9g^2 - 30gh + 25h^2
Bezzdna [24]

Answer:

Step-by-step explanation:

It's a perfect square.

It factors into (3g - 5h)^2

or (3g - 5h)(3g - 5h)

Make sure it is correctly factored.

3g*3g = 9g^2

3g * - 5h  = - 15gh

-5h*3g = - 15gh

5h*5h = 25h^2

These four terms add to 9g^2 - 15gh - 15gh + 25h^2 = 9g^2 - 30gh + 25h^2 which is exactly what you started with.

7 0
3 years ago
What is 0.73 KL to L
Elza [17]
It is 730. the answer is 730
7 0
2 years ago
Read 2 more answers
Help!! whats the answer? and how do I solve!! :(
Sever21 [200]
I think the answer is 20.25 because when solving for the area of a triangle you do 1/2 base times height and so the equation would be
1/2(9)(4.5)
you would start by doing 9(4.5) which equals 40.5
then you would divide by 1/2 which equals 20.25
hope this helps:)
5 0
3 years ago
HELP ME ASAP PLEASE IM REALLY STRESSED :c
sveta [45]

Answer:

0.3 miles.

Step-by-step explanation:

If it takes all 3 of them to get there in a mile then it will equal to 3 miles.

5 0
3 years ago
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(3.rº – 7x + 2) - (2x² – 4x + 5)
Vladimir79 [104]

Answer:

choice C: x2 -3x -3

Step-by-step explanation:

(3x^2-7x+2)-(2x^2-4x+5)

becomes

3x^2-7x+2 -2x^2+4x-5

adding

3x^2-2x^2 -7x+4x +2-5

which is

x^2 -3x -3

5 0
3 years ago
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