A ball is thrown straight down from the top of a 428-foot building with an initial velocity of -20 feet per second. Use the position function below for free-falling objects. s(t) = -16t2 + vot + so What is its velocity after 3 seconds? v(3) = -68 X ft/s What is its velocity after falling 104 feet? V = x ft/s

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A: You must have idea about three step differentiation method.

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A: Option D is correct answer. Detailed solution is given below.

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A: Let's find.

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Q: arke

A: please refer to the image below

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.