Find an expression which represents the difference when (-9x+9)(−9x+9) is subtracted from (x+8)(x+8) in simplest terms.

three-fourths of an hour

36÷48=0.75

0.75=

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh

for future students the answer is b

hope i

-lavira: )