Solve the problem.A race track is in the shape of an ellipse 80 feet long and 60 feet wide. What is the width 32 feet from the center?
Fill in the blank(s) with the appropriate word(s).
36 ft
Mathematics
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Solve the problem.Find the centroid of the region bounded above by the sphere 
and below by the plane 
if the density is constant.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 12
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Mathematics
Use the unit circle to determine the value of the given expression or state that it is undefined.cot (570°)
A. 
B. - 
C. 
D. - 
Mathematics
Factor by grouping.45 - 5y - 9t + yt
A. (9 - y)(5 - t) B. (9 + y)(5 + t) C. (9 + y)(5 - t) D. (9 - y)(5 + t)
Mathematics
Solve the equation.-6[-5x + 7 + 2(x + 1)] = -7x + 4
A. 
B. 
C. 
D. 
Mathematics