A. f(1.3)=1. B. f(1.8)=2 c. f(-1.5)=-2 D. f(2.8)=2

13

a

f

=

1.8

b

f

=

−

c

f = − 5.6 d f = 2

Step-by-step explanation:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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