Evaluate.82 - 4 ? 9
A. 28
B. 144
C. 540
D. 288
Answer: A
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Provide an appropriate response. Weights of adults in a certain age group are normally distributed. Which of the following are plausible values for the mean and standard deviation?
A. Mean = 155 lb, standard deviation = 12 lb B. Mean = 155 lb, standard deviation = -20 lb C. Mean = 160 lb, standard deviation = 25 lb D. Mean = 158 lb, standard deviation = 5 lb
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
Perform the operation or operations when possible.
+ 
A. 
B. 
C. They cannot be added.
D. 
Write the ordered pair for each point shown in the xy plane.
A. A = (1, 3), B = (5, 3) B. A = (5, 18), B = (3, -5) C. A = (1, 5), B = (3, -5) D. A = (1, 5), B = (-5, 3)