For this case we have that the area of a circle is given by:

Where:
r: It is the radius of the circle
By clearing the radio we have:

We take the positive value:

The diameter is twice the radius:

Answer:

Because the ones place is under 5, we round down, and 392 becomes 390 when rounded to the nearest 10
Answer:
f = 11
Step-by-step explanation:
A is you answer because out of the 30 people that he asked twelve percent said yes but those 30 families aren't all the families in the neighborhood
Answer:
cot(x)
Step-by-step explanation:



Recall the Pythagorean Identity 