Using your knowledge of special right triangles, find the length of each leg. Round to the nearest tenth.
A. 2.5 ft, 4.3 ft
B. 10 ft, 3.9 ft
C. 5 ft, 4.5 ft
D. 2.5 ft , 5.2 ft
Answer: A
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Determine the number of figures (of any size) in the design.Squares (of any size)
A. 9 B. 8 C. 11 D. 12
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
An object moves in simple harmonic motion described by the given equation, where t is measured in seconds and d in meters . Find the maximum displacement, the frequency, and the time required for one cycle.d = -5 sin 3t meters
A. displacement = -5 meters; period = 3 ? seconds; f = 
oscillations/second
B. displacement = 5 meters; period = 
? seconds; f = 
oscillations/second
C. displacement = -5 meters; period = 
? seconds; f = 
oscillations/second
D. displacement = 5 meters; period = 
seconds; f = 
? oscillations/second
Find an equation for the parabola described.Vertex at (5, -4); focus at (5, -7)
A. (y - 4)2 = 8(x + 5) B. (x - 5)2 = -12(y + 4) C. (x - 5)2 = 12(y + 4) D. (y - 4)2 = -8(x + 5)