Acircular 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(r) = t7r2, 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.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

answer: list the statements and i will follow up!

step-by-step explanation: