Answer: x=1
Step-by-step explanation:
4 (-x+4）=12
（-4x+16）=12
-4x+16-16 =12-16
-4x/-4 =-4/-4
x=1
I don't know if this is right, please let me know if it is wrong ο(=•ω＜=)ρ⌒☆
What is the length of a soccer field.
SQUARES BECAUSE THEY ARE IN THE MIDDLE DUMMY
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
