Write the trinomial as a square of a binomial or as an expression opposite to a square of a binomial: -1 + 4a -4a^2

450

step-by-step explanation:

you get texts and minutes, so why not

c

step-by-step explanation:

answer: the answer is b. i think hope i got it correct

step-by-step explanation:

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