To get the maximum height, we first determine the time at which this maximum height is attained by differentiating the given equation and equating the differential to zero.
h(t) = -0.2t² + 2t
Differentiating,
dh(t) = -(0.2)(2)t + 2 = 0
The value of t is equal to 5. Substituting this time to the original equation,
h(t) = -0.2(5²) + 2(5) = 5 ft
Thus, the maximum height is 5 ft and since it will take 5 seconds for it to reach the maximum height, the total time for it to reach the ground is 10 seconds.
Answers: maximum height = 5 ft
time to reach max height = 5 seconds
time it will reach the ground = 10 s
Answer:
-2/3
Step-by-step explanation:
To find the slope, pick two points on the line, and use the slope formula
( 0,50) and (30,30)
m = ( y2-y1)/(x2-x1)
= (30-50)/(30-0)
= -20/30
= -2/3
Answer:
Step-by-step explanation:
B, y=5x
Answer:
x = 7
Step-by-step explanation:
First, solve by dividing y with x
When x = 6, y = 36
36/6= 6
6(x) = y is your equation.
Now plug in 42 for y
6(x) = 42
Isolate the x. Divide 6 from both sides
(6x)/6 = (42)/6
x = 42/6
x = 7
7 is your answer for x.
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Answer:
Lon choose A, because he forgot to add the parenthesis when he subtracted.
Step-by-step explanation:
