Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so.4 x - y = 85x + y = 19
A. {(4, 3)}
B. {(3, 4)}
C. ?; inconsistent system
D. {(3, 5)}
Answer: B
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Solve the problem.The length of the ellipse x = a cos t, y = b sin t, 0 ? t ? 2? is Length = 4a
where e is the ellipse's eccentricity.Use Simpson's Rule with n = 6 to estimate the length of the ellipse when a = 2 and e = 1/3.
A. 11.8956 B. 12.1751 C. 11.2546 D. 12.2097
Solve the inequality and graph the solution set.| 6 - x | ? 7
A. [13, ?)
B. [-1, ?)
C. [-1, 13]
D. (-?, -1] ? [13, ?)
An expression that occurs in calculus is given. Reduce the expression to lowest terms.
A. 
B. 
C. 
D. 
Solve.You notice the following advertisement in the local newspaper: A 32-foot motorboat for sale price of $33,000; $6,000 down and $630 per month for 60 monthsWhat is the APR of the loan? (Use the APR formula.)
A. 13.94% B. 14.3% C. 14.15% D. 14.09%