What is the sign of -567.45 + 567.45? Choose 1 Choose 1 (Choice A) A Positive (Choice B) B Negative (Choice C) C Neither positive nor negative—the sum is zero.

C

Step-by-step explanation:

The two values, since they are equal in absolute value and merely differ in being positve or negative, result in a sum of 0

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

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