Solve the formula for the indicated variable.r = 
for S
A. S = 4?r
B. S = 16?2r2
C. S = 4?r2
D. S = 
Answer: C
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Parametric equations and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 16t2, y = 4t, -? ? t ? ?
A. x = y2
Entire parabola, bottom to top (from fourth quadrant to origin to first quadrant)
B. y = x2
Entire parabola, right to left (from first quadrant to origin to second quadrant)
C. x = y2
Entire parabola, top to bottom (from first quadrant to origin to fourth quadrant)
D. y = x2
Entire parabola, left to right (from second quadrant to origin to first quadrant)
Provide an appropriate response.Write a problem for a classmate to solve. Devise the problem so that a system of two nonlinear equations must be used.
What will be an ideal response?
Find an equation of variation in which the following are true.y varies directly as the square of x, and y = 5.6 when x = 4.
A. y = 0.35x2
B. y = 1.92x2
C. y = 0.4x2
D. y = 0.39
Provide an appropriate response.The single discount equivalent is the:
A. complement of the single discount rate B. same as the net decimal series C. same as the net decimal equivalent D. complement of the net decimal equivalent