Write the interval in set-builder notation and graph the set on a number line.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The specific gravity s of a sphere of radius r that sinks to a depth h in water is given by s = 
.Find the depth to which a spherical buoy of radius 4.2 cm sinks if s = 0.50. Round your answer to the nearest hundredth.
A. 15.67 cm B. 4.2 cm C. 11.47 cm D. 3.07 cm
Simplify the expression.
2
A. 1
B. 
C. 
D. 5
Solve the right triangle shown in the figure. Round lengths to one decimal place and express angles to the nearest tenth of a degree. 
a = 2.1 in, A = 52.7°
A. b = 1.6 in, B = 37.3°, c = 2.6 in B. b = 3.0 in, B = 37.3°, c = 2.6 in C. b = 0.5 in, B = 37.3°, c = 2.2 in D. b = 3.0 in, B = 37.3°, c = 3.7 in
Solve the three-part inequality. Write your answer in interval notation.-4 < -4x ? 12
A. (-3, 1) B. (-1, 3] C. [-3, 1] D. [-3, 1)