Find the specified quantity.Find the amplitude of y = -3 cos 
.
A. 4
B. -12
C. 3
D. 
Answer: C
Mathematics
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Find the amount of interest earned by the deposit.$1000 at 7% compounded semiannually for 10 years
A. $1989.79 B. $922.50 C. $989.79 D. $967.15
Mathematics
Find the limit, if it exists.
A. Does not exist B. 1/2 C. 0 D. 1/4
Mathematics
Use the fundamental identities to find the value of the trigonometric function.Find sin ? if cos ? = 
and ? is in quadrant IV.
A. 
B. - 
C. 
D. 
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. x2 + 7
C. 
D. 7
Mathematics