The graph of a quadratic function is given. Choose the function's equation.
A. f(x) = x2 + 2x + 1
B. f(x) = x2 - 1
C. f(x) = x2 - 2x + 1
D. f(x) = x2 + 1
Answer: C
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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. 9.1 lb/in.2 C. 8.4 lb/in.2 D. 7.8 lb/in.2
Find the area of the region specified in polar coordinates.the region inside both 
and 
A. 
(? - 1)
B. 
(? - 1)
C. 
(? - 2)
D. 
(? - 2)
Approximate to the nearest hundredth.
A. 3.15 B. -30 C. 3.16 D. 2.15
Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.The profit of Mythological Company last year was $610,000. This year's profit decreased by 3.5%. Find this year's profit.
A. $213,500.00 B. $21,350.00 C. $588,650.00 D. $396,500.00