Simplify.
A. x16
B. x6
C. x4
D. 
Answer: C
Mathematics
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Find the value of the indicated trigonometric function of the angle ? in the figure. Give an exact answer with a rational denominator.
Find sin ?.
A. sin ? = 
B. sin ? = 
C. sin ? = 
D. sin ? = 
Mathematics
Find the outer diameter (the length AB) of the parabolic reflector shown below.
?
?
; 
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the problem.A boat can go 105 mph in still water. It takes as long to go 560 miles upstream as it does to go downstream 640 miles. How fast is the current?
A. 1 mph B. 7 mph C. 8 mph D. 6 mph
Mathematics
Multiply. Express the answer as a single polynomial in standard form.(x - 12)(x2 + 9x - 8)
A. x3 + 21x2 + 100x - 96 B. x3 - 3x2 - 100x - 96 C. x3 - 3x2 - 116x + 96 D. x3 + 21x2 + 116x + 96
Mathematics