Write the ratio as a fraction in lowest terms.
A. 
B. 
C. 
D. 
Answer: D
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A formula is given, along with values for all but one of the variables in the formula. Find the value of the variable that is not given.P = 2L + 2w; L = 8, w = 4
A. P = 64 B. P = 12 C. P = 24 D. L = 24
Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 752. Find a linear function, S(t), which fits this data, and which expresses score as a function of time. Use this function to predict an average score for persons taking a 60-hour review course. Round your answer to the tenths place.
A. 719.0 B. 711.7 C. 733.0 D. 723.2
Solve.The voltage E in an electrical circuit is given by E = 5.6 cos 40?t, where t is time measured in seconds. Find the period.
A. 
B. 20?
C. 
D. 20
Multiply or divide and write scientific notation for the result.
A. 6 × 104 B. 3 × 1012 C. 3 × 104 D. 6 × 1012