Add or subtract, as indicated.38
- 25
A. 12
B. 12
C. 13
D. 11
Answer: A
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Express the number in scientific notation.532.15
A. 5.3215 x 103 B. 5.3215 x 102 C. 5.3215 x 10-3 D. 5.3215 x 10-2
In one individual, the percent alcohol level t minutes after two shots of whiskey is given by 
. Find the blood alcohol level after 13 minutes. Round to the nearest thousandths.
?
A. 0.157 % B. 0.118 % C. 0.143 % D. 0.457 % E. 0.285 %
Describe the inverse of the statement.Divide x by 2 and subtract 8.
A. Multiply x by 2 and add 8.
B. Divide x by 
and subtract -8.
C. Subtract 8 from x and divide the result by 2.
D. Add 8 to x and multiply the result by 2.
Solve the problem.The formula A = 210e0.031t models the population of a particular city, in thousands, t years after 1998. When will the population of the city reach 295 thousand?
A. 2010 B. 2012 C. 2009 D. 2011