Evaluate the determinant.
A. -44
B. -20
C. 44
D. 52
Answer: C
Mathematics
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Find the indicated part of the right triangle.One leg is 21.12, and the hypotenuse is 35.5. Find the larger acute angle. Round your answer to the nearest tenth.
A. 63.5° B. 36.5° C. 53.5° D. 50.7°
Mathematics
Rationalize the denominator. Simplify, if possible. Assume that any variables represent positive real numbers. 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the composition of functions.Let f(x) = x2 + 2 and g(x) = 3x + 6. Find (g ? f)(5).
A. 87 B. 443 C. 75 D. 33
Mathematics
Add as indicated.8a3 + 3a2
A. 11a3 + 6a2 B. 17a5 C. 11a6 + 6a4 D. 17a10
Mathematics