Find a) the mean, 
, of the data, b) the deviation from the mean for each data item, and c) the sum of the deviations. 44, 44, 46, 49, 49, 49, 50, 51, 54, 54
A. a) mean: 50, b) deviations: 5, 5, 3, 0, 0, 0, 1, 2, 5, 5, c) sum: 0
B. a) mean: 50, b) deviations: 5, 5, 3, 0, 0, 0, 1, 2, 5, 5, c) sum: 26
C. a) mean: 49, b) deviations: -5, -5, -3, 0, 0, 0, 1, 2, 5, 5, c) sum: 26
D. a) mean: 49, b) deviations: -5, -5, -3, 0, 0, 0, 1, 2, 5, 5, c) sum: 0
Answer: D
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Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.x2 - 25y2 - 8x - 100y - 109 = 0
A. center at (4, -2)
transverse axis is parallel to x-axis
vertices at (-1, -2) and (9, -2)
foci at (4 - 
, -2) and (4 + 
, -2)
asymptotes of y + 2 = - 
(x - 4) and y + 2 = 
(x - 4)
B. center at (4, -2)
transverse axis is parallel to x-axis
vertices at (3, -2) and (5, -2)
foci at (4 - 
, -2) and (4 + 
, -2)
asymptotes of y + 2 = - 5(x - 4) and y + 2 = 5(x - 4)
C. center at (-2, 4)
transverse axis is parallel to x-axis
vertices at (-7, 4) and (3, 4)
foci at (-2 - 
, 4) and (-2 + 
, 4)
asymptotes of y - 4 = - 
(x + 2) and y - 4 = 
(x + 2)
D. center at (4, -2)
transverse axis is parallel to y-axis
vertices at (4, -7) and (4, 3)
foci at (4, -2 - 
) and (4, -2 + 
)
asymptotes of y - 2 = - 5(x + 4) and y - 2 = 5(x + 4)
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.54x - 5(4x + 1) = -100
A. 
B. 
C. - 
D. No solution
Write the algebraic expression described. Simplify if possible.During a walk-a-thon, Rosilyn walked 14 fewer laps than June walked. If June walked b laps, how many laps did Rosilyn walk?
A. (b - 14) laps
B. (14 - b) laps
C. 
laps
D. (b + 14) laps
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 6.8x - 150.7 B. y = 6.2x - 140.4 C. y = -6.8x + 150.7 D. y = -6.2x + 140.4