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A player shoots a basketball from a height of 5 feet. The equation h = -16t^2 + 5t + 5 gives the height, h, of the basketball after t seconds. Describe the height, rounded to the nearest hundredth of a foot, of the basketball after 1.25 seconds, assuming no other player touches the ball.

A. 4.25 feet above the ground
B. 4.50 feet above the ground
C. 4.75 feet above the ground
D. 5.00 feet above the ground

User Caumons
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1 Answer

2 votes

Final answer:

An error occurred in the initial calculation of the basketball height at 1.25 seconds. The height simply cannot be negative; hence the calculation requires revisiting and correction. Please consider reassessing the quadratic equation and following the correct mathematical steps to find the height.

The correct option is not given.

Step-by-step explanation:

To calculate the height of the basketball after 1.25 seconds using the given quadratic equation h = -16t2 + 5t + 5, we must substitute t with 1.25 seconds:



h = -16(1.25)2 + 5(1.25) + 5



Now let's solve it step-by-step:



Add the products along with the initial height of 5 feet.

Since the result cannot be negative with respect to the ground, there might be a miscalculation.

Re-evaluate each step to find and correct the error.



After correctly solving, the height of the basketball at 1.25 seconds should be:



h = -16(1.25)2 + 5(1.25) + 5

h = -16(1.5625) + 6.25 + 5

h = -25 + 6.25 + 5

h = -18.75 + 5

h = -13.75 feet

h = 13.75 feet (since height cannot be negative, this indicates an error in the equation's sign or computation)



It seems there has been an error in my response, as the height cannot be a negative value.

The correct option is not given.

User Obie
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