Find the vertices of the hyperbola. 3x2 - y2 = 48
A. (0, 3) and (0, -3)
B. (4, 0) and (-4, 0)
C. (0, 4) and (0, -4)
D. (16, 0) and (-16, 0)
Answer: B
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Solve the problem.The 10 ft wall shown here stands 33 feet from the building. Find the length of the shortest straight beam that will reach to the side of the building from the ground outside the wall.
A. 56.7 B. 58.7 C. 43 D. 57.7
Find the weighted mean of the numbers in the table. Round to the nearest tenth.A class of 44 students took a 10-point quiz. The frequency of scores is given in the table. 
A. 7.8 points B. 7.3 points C. 7.6 points D. 7.5 points
Find the LCD for the fractions in the list.
, 
, 
A. 8(r + 4) B. r(r + 4)2 C. 8(r + 4)2 D. 8r(r + 4)2
Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
A. x = 1.99, y = 0.13; x = 1.04, y = 1.70; x = -0.91, y = 2.95 or (1.99, 0.13), (1.04, 1.70), (-0.91, 2.95) B. No real solution exists. C. x = 1.18, y = 1.03; x = 1.07, y = 1.52; x = -0.91, y = 2.88 or (1.18, 1.03), (1.07, 1.52), (-0.91,2.88) D. x = 1.81, y = 0.28; x = 0.20, y = 2.45; x = -0.20, y = -2.45 or (1.81, 0.28), (0.20, 2.45), (-0.20, -2.45)