Find the length of the third side of the right triangle. Give an exact answer and, where appropriate, an approximation to three decimal places.
A. c = 
cm; c ? 12.806 cm
B. c = 
cm; c ? 6.000 cm
C. c = 
cm; c ? 11.489 cm
D. c = 18 cm
Answer: A
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Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle 
if the density of the rod is 
A. 
= 
, 
= 
B. 
= 1, 
= 1
C. 
= 
, 
= 
D. 
= 
, 
= 
Identify the correspondence.The two triangles shown below are congruent. List the vertices corresponding to A, B ,and C in order. 
A. X, Y and Z B. Y,X and Z C. Z, X and Y D. Y, Z and X
Plot a scatter diagram.Draw a scatter diagram of the given data. Find the equation of the line containing the points 
and 
Graph the line on the scatter diagram.
A. y = -1.87x + 11.53
B. y = 2.08x + 12.45
C. y = -2.28x + 12.95
D. y = -2.08x + 12.45
Determine the constant of variation for the stated condition.t varies jointly as r and s, and t = 54 when r = 27, and s = 18.
A. k = 
B. k = 9
C. k = 18
D. k = 