A ball is thrown straight up from the top of a 24-foot-tall building with an initial speed of 40 feet per second. The height of the ball as a function of time can be modeled by the
function h(t) = –16t

2 + 40t + 24.

a) How long will it take for the ball to hit the ground?

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

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

answer: idk wbu

step-by-step explanation:

if i'm not wrong, i would say that the third angle has (72) because the three sides of all triangles have 180 degrees and if we subtract 180 - 62 - 40 = (72) / but i'm not sure about 40 yd.