Solve.
x + 
x = 9x + 
+ 
x
A. 
B. 
C. 
D. 
Answer: C
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Use a table to answer the question. Round to the nearest percent.A population is normally distributed. What percentage of the population lies to the left of the population z score -1.55?
A. 8% B. 4% C. 6% D. 9%
Solve triangle ABC. If necessary, round the answer to the nearest tenth.A = 38.2°, C = 92.7°, b = 16.6 centimeters
A. B = 130.9°, a = 10.3 cm, 
cm
B. B = 130.9°, a = 13.6 cm, 
cm
C. B = 49.1°, a = 13.6 cm, 
cm
D. B = 49.1°, a = 10.3 cm, 
cm
For the set of numbers, find the mean, median, and any mode that exist. 91, 88, 86, 85, 94, 90
A. mean: 89, median: 85, mode: 94 B. mean: 90, median: 85, mode: 94 C. mean: 89, median: 89, mode: no mode D. mean: 88, median: 89, mode: no mode
Solve. Graph the solution on a number line, and express it in interval notation.
(2x - 1) < -6
A. x < 4, (-?, 4)
B. x ? 4, [4, ?)
C. x ? - 4, (-?, - 4]
D. x < - 4, (-?, - 4)