Find the perimeter or circumference. Use ? ? 3.14 when needed.
A. 50 yd
B. 74 yd
C. 312.5 yd
D. 75 yd
Answer: D
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Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.7x = |y|
A. x-axis, y-axis, origin B. Origin only C. x-axis only D. y-axis only
In the event of an emergency stop, the speed S, in miles per hour, of a car when brakes are applied can be calculated from the length L, in feet, of skid marks. The relationship is 
. Suppose skid marks are 67.40 feet long. Use functional notation to express the speed of the car, and then calculate that value.
?
A. 
miles per hour
B. 
miles per hour
C. 
miles per hour
D. 
miles per hour
Multiply.(x2 + 4y2 - xy)(x2 + 3xy + y2)
A. x4 + 4x3y + 2x2y2 + 11xy3 - 4y4 B. x4 + 2x3y + 2x2y2 + 11xy3 + 4y4 C. x4 + 4x3y + 8x2y2 + 11xy3 + 4y4 D. x4 + 2x3y + 2x2y2 + 13xy3 - 4y4
Solve the problem.Julie rode her bicycle 40 km in one afternoon. How many meters did she ride?
A. 0.4 m B. 40,000 m C. 4000 m D. 0.04 m