A child wanders slowly down a circular staircase from the top of a tower. With x, y,zx, y,z in feet and the origin at the base of the tower, her position tt minutes from the start is given by x = 10cos t, y = 10sin t, z = 90 - 5t.

(a) How tall is the tower?

(b) when does the child reach the bottom?

(c) What is her speed at tme t?

(d) What is her acceleration at time t?

yes

step-by-step explanation:

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a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

boxplot e is the answer