IM PRRETTY SURE ITS D BEB
Answer:
9
Step-by-step explanation:
The reason why that is wrong is because it says in terms o pi which means you do NOT multiply pi by the radius squared.
EQUATION FOR AREA OF A CIRCLE: 
When you put it all together you get:
which equals 
DO NOT MULTIPLY 9 AND PI. IT'S JUST 9
hope this helped :)
Answer: Area of the triangle =21×6×h, where h is the altitude.
Step-by-step explanation:
Forgive me if I'm wrong
Answer:
here are the coordinates :
(0,5) and (1,3)
First the 3.1 hr is one standard deviation away from the mean:
2.5 + 0.6 = 3.1 hr. then the one standard deviation away from the mean contains 68% of the total population. so the percent that is higher from 3.1 hr is
% higher 3.1 hr = ( 100 - 68) / 2
% higher 3.1 hr = 32 / 2
% higher 3.1 hr = 16 %