I believe that the answer to your question in b = 0.
Answer:
oh no i dunno how to do this
Step-by-step explanation:
Is there a photo with this
Answer:
a. h(t) = -16t^2 +12t + 4.
b. 5.04 ft
c. 6 ft.
d. 1 second.
Step-by-step explanation:
a.
This is upward motion against the force of gravity. The acceleration due to gravity is 32 ft s-2.
An equation modelling this is
h(t) = ut + 1/2 gt^2 + 4 where h(t) = height of the birdie at time t, g = acceleration due to gravity, t = the time and u = the initial velocity.
u = 12 and g = -32 (because the flight is against gravity) so we have:
h(t) = 1/2 * -32 t^2 + 12t + 4
h(t) = -16t^2 + 12t + 4
b. At t = 0.1 seconds the height is 12(0.1) - 16(0.1)^2 + 4
= 1.2 - 0.16 + 4
= 5.04 ft.
c. At t = 0.25 the height is 12(0.25) - 16(0.25)^2 + 4
= 6 feet
d . When the birdie reaches the ground h will be 0 so
12t - 16t^2 + 4 = 0
-4t^2 + 3t + 1 = 0
(4t- 1)(-t - 1) = 0
t = -0.25, t = 1
t = 1 ( ignore the negative root).
t = 1 second.
Answer:
Step-by-step explanation:
Since one triangle is inscribed in another, the two triangles are similar. As marked in the diagram, the sides of the larger triangle are exactly two times larger than the corresponding sides of the smaller triangle.
Therefore, we have:
Since AC is marked by 
:
