Find the exact value of the trigonometric expression without the use of a calculator.sin
A. 
B. 
C. - 
D. - 
Answer: C
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Solve the problem.The combined capacitance N (in ?F) of a 3-?F capacitance and a variable capacitance C in series is given by 
Sketch the graph.
A. 
B. 
C. 
D. 
Find the average of the list of numbers.
and 
A. 
B. 
C. 
D. 
Solve the problem.From a 50-inch by 50-inch piece of metal, squares are cut out of the four corners so that the sides can then be folded up to make a box. Let x represent the length of the sides of the squares, in inches, that are cut out. Express the volume of the box as a function of x.
A. V(x) = 2x3 - 150x2 B. V(x) = 4x3 - 200x2 + 2500x C. V(x) = 2x3 - 150x2 + 50x D. V(x) = 4x3 - 200x2
The number line in the following graphic represents fictional net exports in billions of dollars for five countries. Net exports are obtained by subtracting total imports from total exports; a negative net export means the country imported more goods than it exported.
Estimate the net amount of exports for Denmark.
A. -20 billion dollars B. 30 billion dollars C. -40 billion dollars D. -30 billion dollars