Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = cos ?Find 5 f(?).
A. 
B. - 
C. 
D. - 
Answer: A
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Perform the indicated operation without the use of a calculator and express each answer in decimal notation.
A. 0.00142857 B. 700 C. 100 D. 0.07
Find the annual amount of depreciation using the straight-line method. Round to the nearest dollar.Cost:$37,000Estimated life:25 yearsEstimated scrap value:None
A. $1,480 B. $3,700 C. $500 D. $9,250
Construct a truth table for the statement.~((w ? q) ? s)
A. 
| T | T | T | F |
T F T F
T F F T
F T T F
F T F T
F F T F
F F F T
B.
| T | T | T | T |
T F T T
T F F F
F T T T
F T F F
F F T T
F F F F
Solve the problem.A faucet is used to add water to a large bottle that already contained some water. After it has been filling for 5 seconds, the gauge on the bottle indicates that it contains 28 ounces of water. After it has been filling for 12 seconds, the gauge indicates the bottle contains 63 ounces of water. Let w be the amount of water in the bottle t seconds after the faucet was turned on. Write a linear equation that models the amount of water in the bottle in terms of x.
A. w = 
t + 27
B. w = 5t + 3
C. w = -5t + 53
D. w = 5t + 51