Find the exact circular function value.tan 
A. 
B. 1
C. -1
D. 
Answer: B
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Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = 2?(S - r)
B. h = 
C. h = S - r
D. h = 
- 1
Write the decimal as a percent.In an extended care facility, 0.1438 of the residents require a particular heart medication. Write this decimal as a percent.
A. 0.1438% B. 14.38% C. 1.438% D. 1438%
Solve the problem.If w = 7i + 2j, find 4w.
A. 28i + 2j B. 28i + 8j C. 11i + 2j D. 11i + 6j
Solve the problem.The number of centimeters, d, that a spring is compressed from its natural, uncompressed position is given by the formula 
where W is the number of joules of work done to move the spring and k is the spring constant. If a spring has a spring constant of 0.6, find the amount of work needed to move the spring 7 centimeters.
A. 14.7 joules B. 49 joules C. 29.4 joules D. 2.1 joules