<h2>
Answer:</h2>
This is a 2-step equation:
The solution is <em>x = 3</em>.
Answer:
b i think
Step-by-step explanation:
because even i didnt see it i still remember my old lessons
#CarryOnLearning
Answer:
8.55
Step-by-step explanation:
Answer:
Simplifying
x = 4.5 + -0.5y
Step-by-step explanation:
it takes 5 seconds to reach a height of 40 ft. and It takes 2.5 seconds to reach maximum height.
Let h(t) represent the height of the ball at time t.
Given that the height is given by:
h(t) = -16t² + 80t + 40
1) For the ball to reach a height 0f 40 ft, h(t) = 40, hence:
40 = -16t² + 80t + 40
16t² - 80t = 0
t(t - 5) = 0
t = 0 or t = 5
Hence it takes 5 seconds to reach a height of 40 ft.
2) The maximum height is at h'(t) = 0,
h'(t) = -32t + 80
-32t + 80 = 0
32t = 80
t = 2.5
It takes 2.5 seconds to reach maximum height.
Find out more at: brainly.com/question/11535666
