10) a. 130
Step-by-step explanation:
2(420) + 2(245) = x
840 + 490 = x
x = 1330 yards
Answer:
(a) 24 ft
(b) 2.5 s
Step-by-step explanation:
At t=2
h=-2(2)^{2}+10(2)+12=12+20-8=24 ft
Therefore, height after 2 s=24 ft
(b)
As it hits the ground, t is maximum and at maximum t, we differentiate the function to have
h=-4t+10 and h=0 hence
4t=10 hence t=10/4=2.5 seconds
Answer:
60 feet
Step-by-step explanation:
Answer:
15.50 or C
Step-by-step explanation:
