Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find cos ?.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Perform the operation and give the answer as a fraction in lowest terms.
÷ 
A. - 
B. 
C. - 
D. - 
Mathematics
Rewrite with positive exponents, and simplify, if possible.5-7/9ax-4/5z5
A. 
B. 
C. 
D. 
Mathematics
Solve.How many ways can a president, vice-president, and secretary be chosen from a club with 10 members?
A. 30 B. 720 C. 6 D. 120
Mathematics
Multiply and, if possible, simplify.
? 
A. 18
B. 24
C. 12
D. 12
Mathematics