Find all solutions to the equation.-2 = 4 - 6 tan 2x
A. x = 
+ n?, x = 
+ n?, for integers n
B. x = 2? + 2n?, for integers n
C. x = ? + n?, for integers n
D. x = 
+ n?, x = 
+ n?, for integers n
Answer: A
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Solve the problem.Jane wants to buy a photocopier. The salesman has the following information on 3 models. If all 3 are used, a specific job can be done in 50 minutes. If copier A operates for 20 minutes and copier B for 50 minutes, one-half the job is finished. If copier B operates for 30 minutes and copier C for 80 minutes, three-fifths of the job is done. Which is the fastest copier, and how long does it take for this copier to finish the whole job?
A. B is fastest; 100 min B. C is fastest; 120 min C. C is fastest; 100 min D. A is fastest; 120 min
Find the center and the radius of the circle.x2 + y2 + 16x - 8y + 16 = 0
A. (8, -4), r = 64 B. (-4, 8), r = 64 C. (4, -8), r = 8 D. (-8, 4), r = 8
Find the square root.
A. 4
B. 
C. 
D. 
Find principal to the nearest dollar, rate to the nearest tenth of a percent, or time to the nearest day. Use banker's interest.House of Realty earned 
interest on a $18,000 deposit in an account paying 4%. Find the number of days that the funds were on deposit.
A. 315 days B. 213 days C. 210 days D. 58 days