Solve using a calculator, finding all solutions in [0, 2?). Round to the nearest hundredth.sin 4x + sin 2x = - 2cos x
A. 0.86, 1.57, 2.28, 4.71
B. 3.67, 5.76
C. 0.52, 1.57, 2.62, 4.71
D. 1.57, 3.67, 4.71, 5.76
Answer: D
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.
A. mm B. mg C. mL D. cm E. m
A medical insurance policy requires Ana to pay the first $100 of her hospital expense. The insurance company will then pay 70% of the remaining expense. Ana is expecting a short surgical stay in the hospital, for which she estimates the total bill to be about $3,900. How much will Ana's portion of the bill amount to?
A. $980 B. $1120 C. $1240 D. $1680 E. $2010
Solve the given differential equation. (The form of yp is given.)D2y - 4y = e-2x (Let yp = Axe-2x.)
A. y = c1e-2x + c2e2x + 
xe-2x
B. y = c1e-2x + c2e2x - 
xe2x
C. y = c1e-2x + c2e2x - 
xe-2x
D. y = c1e-2x + c2e2x - 
xe-2x
- 
A. 
B. 
C. 
D. 