Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r sin ? = 4
A. x = 4; vertical line 4 units
to the right of the pole
B. y = -4; horizontal line 4 units
below the pole
C. x = -4; vertical line 4 units
to the left of the pole
D. y = 4; horizontal line 4 units
above the pole
Answer: D
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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 34 feet and the height of the arch over the center of the roadway is 9 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 1 can pass under the bridge, but Truck 2 cannot. B. Truck 2 can pass under the bridge, but Truck 1 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.
Simplify the expression. Write the answer using positive exponents.
A. - 
B. - 
C. x24y4
D. x24y
The two triangles below are similar. Find the missing lengths.
A. x = 6 B. x = 18 C. x = 20 D. x = 24
Find the coordinates of the midpoint of the line segment PQ.P(u, v), Q(v, u)
A. (uv, uv)
B. (u + v, u + v)
C. 
D. 