A circular oil spill continues to increase in size.
The radius of the oil spill, in miles, is given by the
function r(t) = 0.5 + 2t, where t is the time in hours.
The area of the circular region is given by the
function A(n) = 772, where r is the radius of the
circle at time t.
Explain how to write a composite function to find
the area of the region at time t.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)