Yes, the 8, because the 8 is higher. If I have 30 (3 is on the left) and 80 (8 is on the left), which one is bigger? 80. :)
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Answer:
y= -2/3x-1
Step-by-step explanation:
Hope this helps!
(a) Compare your quadratic for h to the general quadratic ax² +bx +c. Perhaps you can see that ...
a = -16
b = 128
You use these numbers in the given formula to find the time when the ball is highest.
t = -b/(2a) = -128/(2(-16)) = 4 . . . . . . the time at which the ball is highest
(b) Evaluate the quadratic to find the height at t=4.
h = -16(4)² +128(4) +21
h = -256 +512 +21
h = 277
The maximum height of the ball is 277 ft.
Eight million six hundred and twenty thousand four hundred seven
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