Answer:
b
Step-by-step explanation:
Answer:
i think if you read it you should get an awnser
Step-by-step explanation: just keep trying bro
Answer: The answer is f(x) = - 2x²+12x-22.
Step-by-step explanation: We are given to write the function describing a parabola with vertex (3, -4) and passing through the point (5, -12).
We know that the standard form of a parabola with vertex (h, k) is given by

Here (h, k) = (3, -4), so we have

Also, the parabola is passing through the point (5, -12), so

Substituting the value of 'a' above in equation (I), we have

Thus, the answer is f(x) = - 2x²+12x-22..
The answer for you is B.
6, 8, 10
Answer:
SEE BELOW IN BOLD.
Step-by-step explanation:
a.
h = -16t^2 + 50t
h = 20 t
When the height is the same:
-16t^2 + 50t = 20t
-16t^2 + 30t = 0
t(-16t + 30) = 0
t = 0 or -16t + 30 = 0, so:
t = 0 or -30/-16 = 1.875
So the answer is 1.88 seconds to the nearest hundredth.
b.
For the ball
h = -16t^2 + 50t
Finding the derivative and equating to zero:
dh/dt = -32t + 50 = 0
t = -50/-32 = 1.563
Maximum height after 1.56 seconds to nearest hundredth
c.
When the ball hits the ground h = 0 so
-16t^2 + 50t = 0
-16t(t - 50/16)= 0
T = 3.13 SECONDS TO THE NEAREST HUNDERDTH