I will assume you mistyped this question. For y = -1/16x^2 + 4x + 3, the answers to this question are
a) 3 feet
b) 67 feet
c) 64.741 feet
For a) we note that at x = 0, that is the instant where the ball leaves the hand. y(0) = 0.
For b), we find the vertex of y = -1/16x^2 + 4x + 3
y = -1/16x^2 + 4x + 3
y = -1/16(x^2 - 64x) + 3
y = -1/16(x^2 - 64x + 1024 - 1024) + 3
y = -1/16((x-32)^2 - 1024) + 3
y = -1/16(x-32)^2 + 64 + 3
y = -1/16(x-32)^2 + 67
The vertex is at (32,67) so 67 is the maximum height.
For c), we find the x-intercepts with the quadratic formula on
y = -1/16x^2 + 4x + 3=0:
x = [ -b <span>± √b^2 - 4ac ] / (2a)</span><span>
x = [ -4 ± √4^2 - 4(-1/16)(3) ] / (2(-1/16))
x = -0.741, 64.741
Only the positive solution, so 64.741 feet </span>
Answer:
The answer is B
Explanation:
Because i got t wrong and i know it know
Dry zones generated by sinking air and diverging surface breezes may be seen at the latitudes 30° N and 30° S.
These arid places can only be found at these latitudes in the north and south.
Answer:
1,2,3,4
Explanation:
Why is self-reflection important? Check all that apply.
It improves students’ chances of doing well on tests.-
It helps students learn more efficiently.-
It helps students with their study skills.-
It indicates when students might need extra help. -
It allows students to avoid studying for upcoming tests.
i just got it right
Answer:
11,125,337
Explanation:
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