Use the fundamental identities to find the value of the trigonometric function.Find sec ? if cos ? = 
and sin ? > 0.
A. - 4
B. 
C. 4
D. 
Answer: C
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Use a z-Table to determine the percent of data specified. Round to the nearest hundredth.Less than z = 0.97
A. 16.60% B. 80.78% C. 83.40% D. 83.15%
Solve.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 12 ounces of water. After it has been filling for 12 seconds, the gauge indicates the bottle contains 26 ounces of water. Let y be the amount of water in the bottle x 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. y = 2x + 14
B. y = 2x + 2
C. y = -2x + 22
D. y = 
x + 
Solve.The manager of a coffee shop has one type of coffee that sells for $6 per pound and another type that sells for $12 per pound. The manager wishes to mix 40 pounds of the $12 coffee to get a mixture that will sell for $7 per pound. How many pounds of the $6 coffee should be used?
A. 100 pounds B. 200 pounds C. 240 pounds D. 120 pounds
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.Find the area of the circle.
A. 415.3 ft2 B. 72.2 ft2 C. 144.4 ft2 D. 1661.1 ft2