Answer:
The answers are option b and option e
4.5 x 6.2 = 27.9
Hope that helps
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)
Reduce the expression, if possible, by cancelling the common factors.
Exact Form:
−4/15
Decimal Form:
−0.26
Basically do
y2-y1 divided by x2-x1
14-10 divided by -7-8
which equals -4/15
