A rock is dropped from a building. The equation below gives the distance, d, the rock travels in t seconds. d=4²+2t
How long does it take the rock to travel 99 feet? Enter your answer in the box below.
seconds

i think this is a open ended question but i agree with other guy who said you should ask it at english section

we know that

1) the inscribed angle measures half of the arc it comprises.

so

m∠dgf= > expression

2) the opposite angles in an inscribed quadrilateral are supplementary angles

so

m∠dgf=

m∠dgf=°

substitute in the expression to find the value of arc ef

therefore

the answer is

the measure of the arc ef is

the answer is 64 cm

me l8t3r