Solve the problem.If the area of the following rectangle is 4x2 - 28x and the width is 4x, then the length is the polynomial factor found when 4x is factored from the area. Find the length.
A. (x - 7)
B. (x2 - 7x
C. x - 7x
D. (4x - 28)
Answer: A
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Solve the inequality and write the solution set using interval notation.y2 + 3y + 10 ? 0
A. (-?, ?) B. [-10, 10] C. No solution, or ? D. (-?, 0) ? (0, ?)
Use the fundamental identities to find the value of the trigonometric function.Find sec ?, given that tan ? = 
and ? is in quadrant I.
A. 
B. 
C. - 
D. - 
In business, equipment is often depreciated using the double declining-balance method. In this method, a piece of equipment with a life expectancy of N years, costing $C, will depreciate to a value of $V in n years, where n is given by the formula
?
?
If a computer that cost $39,000 has a life expectancy of 4 years and has depreciated to a value of $15,000, how old is it? Round to the nearest tenth.
?
A. 2.5 years old B. 0.7 years old C. 0.6 years old D. 1.4 years old E. 1.5 years old
Find the limit of the following sequence.
?
?
A. 
B. 
C. 
D. 
E. The limit does not exist.