Two sides of a right triangle ABC (C is the right angle) are given. Find the indicated trigonometric function of the given angle. Give exact answers with rational denominators.Find cot A when a = 9 and c = 10.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the area of the surface generated by revolving the curves about the indicated axis.x = sin t, y = 6 + cos t, 0 ? t ? 2?; x-axis
A. 36?2 B. 18?2 C. 6?2 D. 24?2
Mathematics
Find the area.
A. Not enough data B. 60.2 ft2 C. 35.9 ft2 D. 50.4 ft2
Mathematics
Find the root if it is a real number.
A. 6
B. 1296
C. 
D. Not a real number
Mathematics
Find the amount that should be invested now to accumulate the following amount, if the money is compounded as indicated.$8500 at 6% compounded annually for 9 years.
A. $14,360.57 B. $5333.01 C. $3468.86 D. $5031.14
Mathematics