Use a graphing utility to graph the curve defined by the given parametric equations.x = 3 cos t, y = 2 sin t; 0 ? t ? 2?
A. 
B. 
C. 
D. 
Answer: C
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Use a calculator to evaluate the expression. (Round your answer to three decimal places.)
A. 4.176 × 108 B. 4.176 × 109 C. 7.802 × 107 D. 7.802 × 109 E. 7.802 × 108
Solve the problem.The Blood Alcohol Concentration (BAC) of a person who has been drinking is given by the formula BAC = 
- (hours of drinking × 0.015).For example, the BAC for a 150-lb man who in two hours has drunk two 12-ounce beers , each having a 3.3 percent alcohol content isBAC = 
- (2 × 0.015).Find the BAC for a 170-lb man who in three hours has drunk 5 12-ounce beers, each having a 3.8 percent alcohol content.
A. 0.067 B. 0.078 C. 0.054 D. 0.056
Solve the differential equation.dy + 8y dx = e-8x dx
A. y = e-8x (x + c) B. y = e8x (x + c) C. y = x e-8x D. y = 8x + ce-8x
Solve the inequality, then graph the solution.-17 < 4b + 3 ? -1 
A. (-5, -1)
B. [-5, -1)
C. [-5, -1]
D. (-5, -1]