Step-by-step explanation:
question is not so clear
Find the height of it with pythagoras
Root(100-36)=8
Volume = 1/3 pi r^2 h
1/3(36pi x 8)
=96pi
about 301.59ft^3
Y = a (x + 3)² - 1
Let's take the point (-1;3)
3 = a ( -1 + 3)² - 1
3 = 4a - 1
4a = 4
Therefore a = 4/4 = 1
(x+3)² - 1
= x² + 6x + 9 - 1
= x² + 6x + 8
The answer would be y = x² + 6x + 8.
Hope this helps !
Photon
<u>From the problem statement:</u>
n = "a number"
seven less than twice a number is -1
* now i'll underline the changes made by interpreting the way the question was written:
<u>7</u> less than <u>two times</u><u> </u><u>n</u> is -1
7 less than <u>2*</u><u>n</u> <u>equals</u> -1
<u>take away 7 from</u> <u>2n</u> <u>=</u> -1
2n <u>take away 7</u> = -1
2n <u>-</u> 7 = -1
<u><em>2n - 7 = -1</em></u>
<u><em>answer is: (A)</em></u>