Solve the problem.The function h = -16t2 + 16t + 282 gives the height h, in feet, of a coin tossed upward from a balcony 282 ft high with an initial velocity of 16 ft/sec. During what interval of time will the coin be at a height of at least 90 ft?
A. 4 ? t ? 8
B. 3 ? t ? 4
C. 0 ? t ? 4
D. 0 ? t ? 1
Answer: C
Mathematics
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Find 
by using the Chain Rule. Express your final answer in w = xy2; x = t + s, y = st2
A. 4s2t4 + 5s3t3 B. 5s2t4 + 4s3t3 C. 5s2t3 + 4s3t4 D. 5s3t4 + 4s2t3
Mathematics
Set up the percent proportion for the application problem. Do not try to solve for any unknowns.In a one-day storm, Odentown received 16% of the normal rainfall for a season. Odentown received 9 inches of rain that day. How many inches of rain normally fall during the season?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Solve the problem.Write parametric equations for the tangent line to the curve of intersection of the surfaces 
and 
at the point 
A. 
B. 
C. 
D. 
Mathematics
Add.
A. 115,938 B. 104,938 C. 104,838 D. 105,938
Mathematics