Use a calculator to find the value of the trigonometric function to four decimal places.tan 3.5
A. 0.9365
B. 0.3746
C. 0.3508
D. 0.0612
Answer: B
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Simplify the given expression. Expansion of any term is not necessary; proper recognition of the form of the expression leads to the proper result.4 sin 2x cos 2x
A. 
sin 16x
B. cos 4x
C. cos 8x
D. 2 sin 4x
Use the discriminant to find what type of solutions (two rational, two irrational, one rational, or two nonreal complex) each of the following equations has. Do not solve the equation.16x2 + 8x + 1 = 0
A. two nonreal complex solutions B. two rational solutions C. two irrational solutions D. one rational solution
Solve the inequality. Graph the solution set, and state the solution set in interval notation.|x + 11| < 7
A. (-?, -4)
B. (-18, -4)
C. (4, 18)
D. (-?, -18)
Solve the problem.A rug is to fit in a room so that a border of consistent width is left on all four sides. If the room is 
by 
and the area of the rug is 30 square feet, how wide will the border be?
A. 6.5 ft B. 5 ft C. 4 ft D. 6 ft