Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. 0
B. 1
C. -1
D. 
Answer: A
Mathematics
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Solve the problems.A cheetah can run at a speed of approximately 69 miles per hour. Calculate this speed in feet per minute.
A. 6,072 ft./min. B. 2,070 ft./min. C. 6,042 ft./min. D. 6,097 ft./min.
Mathematics
Determine whether f and g are inverses by determining whether 
and 
f(x) = 
, g(x) = - 
A. Yes B. No
Mathematics
Simplify the difference.(7x + 4) - (4x - 6)
A. 3x - 10 B. 11x + 10 C. 3x + 10 D. 11x - 10
Mathematics
Solve the equation.3(1 + 2x) = 243
A. {-2} B. {2} C. {81} D. {6}
Mathematics