Convert to a rectangular equation.r = 2 csc ?
A. y = 2
B. x2 + y2 = 2
C. x = 2
D. y2 = 2
Answer: A
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Simplify the expression. Assume that all variables are positive when they appear.10
- 4
+ 9
A. 30
B. -30
C. 24
D. 10
Find the product or quotient.
÷ 
A. x - y + 7
B. -1
C. 
D. 
Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 40 to 72. What was the percent of increase?
A. 32% B. 44% C. 180% D. 80%
Solve the problem.The arch beneath a bridge is semi-elliptical, a one-way roadway passes under the arch. The width of the roadway is 38 feet and the height of the arch over the center of the roadway is 11 feet. Two trucks plan to use this road. They are both 8 feet wide. Truck 1 has an overall height of 
and Truck 2 has an overall height of 
. Draw a rough sketch of the situation and determine which of the trucks can pass under the bridge.
A. Truck 2 can pass under the bridge, but Truck 1 cannot. B. Truck 1 can pass under the bridge, but Truck 2 cannot. C. Both Truck 1 and Truck 2 can pass under the bridge. D. Neither Truck 1 nor Truck 2 can pass under the bridge.