Answer: If the radius is 23 then the answer is 1661.9 (WHEN ROUNDED & WITHOUT). If the radius is 11.5 the answer is 415.5 (WHEN ROUNDED)
Step-by-step explanation:
The formula for the area of a circle is: radius x radius x pi/3.14
Answer:
y - 6 = -7(x + 8)
Step-by-step explanation:
Slope: m = (y2-y1)/(x2-x1) = (6 - -1)/(-8 - -7) = (6 + 1)/(-8 + 7) = 7/-1 = -7
Point-slope form: y - 6 = -7(x - -8)
=> y - 6 = -7(x + 8)
The answer would be true.
Answer:
f(g(n)) = 3*n^2 + 9
Step-by-step explanation:
This is function composition.
so
f (g(n) ) = 3 *( n^2 + 4) - 3
simplify:
f (g(n) ) = 3 *n^2 + 12 - 3 = 3*n^2 + 9
from the Great MysticChaCha :-)
Answer is in a box.
The bag contains 6 red marbles, 8 blue marbles and 9 green marbles, that is 23 marbles.
The probability that one of the 23 marbles will be picked is 1 or 100%, we are picking a marble for sure.
So what is the probability you will pick for example one of the 6 red marbles? It is 6 out of 23 but since we need percentages multiply by 100,

The probability to pick a blue marble is,

And the probability to pick a green marble is,

To check that everything is right you can sum all the probabilities; the probability that it will be either red, blue or green is 100% so the individual probabilities must sum to 100%, and they do,

Hope this helps :)