Which is equal to (3x + 2y - 7) - (5x - 4y + 6) A. 2x + 6y -1
B. -2x + 6y - 13
C. 2x - 2y - 1
D. -2x - 2y -1
E. -2x - 2y -13

it is B

Step-by-step explanation:

I had this on my work it should be right

its an acute right triangle

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