Find the reciprocal.9
A. 
B. No reciprocal
C. 9
D. 1
Answer: A
Mathematics
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Graph the polar equation.r = 5 cos 6?
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Reduce 
to lowest terms.
A. 
B. 
C. 
D. 
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? is an acute angle and sin ? is given. Use the Pythagorean identity sin2 ? + cos2 ? = 1 to find cos ?.sin ? = 
A. 3
B. 2
C. 
D. 
Mathematics
Assume that, at a certain college, 33% of all physics majors belong to ethnic minorities. Given a random sample of 10 physics majors, find the probability of the indicated event. Round your answer as appropriate.Exactly 2 belong to an ethnic minority.
A. .2156 B. .1990 C. .0028 D. .1929
Mathematics