Solve the problem.The formula P = 14.7e-0.21x gives the average atmospheric pressure, P, in pounds per square inch, at an altitude x, in miles above sea level. Find the average atmospheric pressure for an altitude of 2.3 miles. Round your answer to the nearest tenth.
A. 11.0 lb/in.2
B. 8.4 lb/in.2
C. 7.8 lb/in.2
D. 9.1 lb/in.2
Answer: D
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Solve the problem.According to Einstein's famous Relativity Theory, the mass of an electron with velocity v is given by: m = 
,where mo is the rest mass of the electron and c is the speed of light in a vacuum. Solve the equation for v.
A. v = 
B. v = 
C. v = ±
D. v = 
Use the data to make a frequency distribution table.Kevin asked some of his friends how many hours they worked during the previous week at their after-school jobs.
Frequency Distribution Table 
What will be an ideal response?
Solve the problem.If you are dealt two cards successively (without replacement) from a standard 52-card deck, find the probability of getting a black on the first card and a heart on the second.
A. 
B. 
C. 
D. 
Name the quadrant in which the point is located.(11, 3)
A. I B. II C. III D. IV