#7 is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Ah usatestprep ok 90% of awnsers are C so pick C
73. you subtract 89 and 16 and that gives you your answer which is*** 73***
Answer:
25 seconds
Step-by-step explanation:
Skydiving.
height (in feet) above the earth=h(t)= -16t^2 + 10,000
the time it would take to fall when h is 0
-16t^2 + 10,000=0
-16t^2=-10000
16t^2=10000
t^2=10000/16=625
t=sqrt 625=25 seconds