When a skydiver jumps from an airplane, his downward velocity V, in feet per second, t seconds into the fall is given by
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A: Make a graph of V versus t over the first 20 seconds of the fall.B: The terminal velocity of the skydiver is 181 feet per second. What is 90% of terminal velocity?C: When does the skydiver reach 90% of terminal velocity?
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Round your answer to two decimal places if necessary.
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What will be an ideal response?
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A:
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B: 162.9 feet per second
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C: After 13.21 seconds
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Mathematics
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19
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A. 17
B. 19
C. 18
D. 18
Mathematics
A cone sliced by a plane results in a type of curve called a conic section. Use the given information and figure to identify the conic section produced in the plane. The plane is parallel to the side of the cone. 
A. ellipse B. circle C. parabola D. hyperbola
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
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A. - 
B. - 
C. 
D. - 
Mathematics
Find the sum.9 + (-9)
A. 9 B. 18 C. -9 D. 0
Mathematics