Use the given information to find the unknown length represented by the variable x.A rectangle with a perimeter of 256 feet
x
A. 105 ft
B. 2415 ft
C. 151 ft
D. 128 ft
Answer: A
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Use a half-angle formula to find the exact value of the expression.sin 165°
A. 
B. - 
C. - 
D. 
Solve the problem.Steve invests in a circus production. The cost includes an overhead of $56,000, plus production costs of $5000 per performance. A sold-out performance brings in $13,000. Let x represent the number of sold-out performances and write the cost function, C and revenue function, R.
A. C(x) = 5000x R(x) = 56,000 + 13,000x B. C(x) = 56,000 + 5000x R(x) = 13,000x C. C(x) = 56,000 + 13,000x R(x) = 5000x D. C(x) = 56,000x + 5000 R(x) = 13,000x
If 
with A in QIV, find
What will be an ideal response?
Caroline deposits $2,000 into a retirement fund each year. The fund earns 7.5% annual interest, compounded monthly. If she opened her account when she was 20 years old, how much will she have (to the nearest dollar) by the time she is 60? How much of that amount will be interest earned?
a. Total in account: $86,000; interest earned: $6,000 b. Total in account: $90,569; interest earned: $10,569 c. Total in account: $ 92,570; interest earned: $12,570 d. Total in account: $320,000; interest earned: $240,000