When the penny hits the ground, h will = 0.
So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m
Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.
We can use only the positive root, as we're measuring time.
t = 5.5 sec (answer)
Answer:
x = 20
Step-by-step explanation:
15/9 = x/12
180 = 9x
x = 20
Answer:
I'm sorry there is not enough information to answer this question
Step-by-step explanation:
Answer:
0 is a rational number, whole number, integer, and a real number.
Step-by-step explanation:
