Step-by-step explanation:
Recall that for a quadratic equation y = ax² + bx + c in the X-Y plane, the x-location of the vertex (i.e maximum or minimum point) is given by
x @vertex = -b/2a
in this case your quadratic equation is
h = 4 + 20t - 5t² (rearranging in the form y = ax² + bx + c )
h = - 5t² + 20t + 4
hence a= -5, b = 20 and c = 4
applying the formula for vertex
t @ vertex = -b /2a = -(20) / (2)(-5) = -20/-10 = 2
therefore t = 2
Answer:
I got you I saved the image and wrote on it :)
Step-by-step explanation:
just look at the image it has all the coordinates labeled.
Answer:
36.0
Step-by-step explanation:
Answer:
7 hours
Step-by-step explanation:
You would divide 289 by 17. You get 17. Then you would divide 119 by 17 and you get 7
Answer:
150.72
Step-by-step explanation: To do this you times the radius by squared then by pi, then fraction your height by the fraction 1/3.
