Find the area of a circle with a diameter of 19 inches

to find the area you have to do:

Area = π(D/2)^2 and in this case D = 19 so..

    π(19/2)^2

            =90.25π

            =283.52873698648

283.53

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!