Find the length of the curve.x = 3 cos t, y = 3 sin t, 0 ? t ? ?
A. 9?
B. ?
C. 6?
D. 3?
Answer: D
Mathematics
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Let 
. If x is divided by 3.02, how is y affected? Round your answer to two decimal places if necessary.
?
A. 0.07 is added to y B. y is multiplied by 1.35 C. y is multiplied by 0.07 D. 1.35 is added to ?y
Mathematics
Simplify the expression.-19 + 4 - 11
A. -12 B. -4 C. 26 D. -26
Mathematics
Solve the problem.A car rental company has two rental rates. Rate 1 is 
per day plus 
per mile. Rate 2 is 
per day plus 
per mile. If you plan to rent for one day, how many miles would you need to drive to pay less by taking Rate 2?
A. more than 1000 miles B. more than 900 miles C. more than 450 miles D. more than 1800 miles
Mathematics
Solve the equation.
b = -4.22
A. {6.78} B. {-46.42} C. {-3.00} D. {5.78}
Mathematics