Use sum-to-product identities to rewrite the expression as a product.sin 7x + sin 3x
A. 2 sin 5x cos 2x
B. 2 sin 10x
C. 2 sin 5x sin 2x
D. 2 cos 5x sin 2x
Answer: A
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?Out of 2,300 people interviewed for the survey, 1400 approved of the major's job performance. If 
of those surveyed had no opinion on the major's performance, what fraction of those surveyed disapproved of the major's performance?
A.
?
B.
?
C.
?
D.
?
E.
?
The position of a car is given by the values in the following table.
Find the average velocity for the time period beginning when t=2 and lasting 2 seconds.
a. 46.1 ft/s
b. 31.9 ft/s
c. 33.5 ft/s
d. 33.8 ft/s
e. 33.2 ft/s
Solve the problem.The formula C = 20d + 30 describes the total cost of renting a truck, where C is the total cost and d is the number of days the truck is rented. How many days can the truck be rented for $110?
A. 5 days B. 2 days C. 14 days D. 4 days
Use mathematical induction to prove that the statement is true for every positive integer n.4 ? 6 + 5 ? 7 + 6 ? 8 + . . . + (n + 3)(n + 5) = 
What will be an ideal response?