Simplify the expression.
A. 11.314
B. -8
C. 22.627
D. not a real number
Answer: B
Mathematics
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Find the area of the specified region.Inside the circle r = 
sin ? and outside the cardioid r = 1 + cos ?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 7 miles per hour and Fred rides 5 miles per hour. In how many hours will they be 60 miles apart?
A. 6 hours B. 5 hours C. 4 hours D. Not enough information
Mathematics
Use the quadratic formula to solve the quadratic equation.y2 - 44 = 7y
A. -11, 1 B. -11, 4 C. 11, -4 D. 11, 4
Mathematics
Simplify where possible. Then solve the equation.
= 3y - y
A. y = 
B. y = 8
C. y = 4
D. y = 
Mathematics