Write the sentence as a mathematical statement.Thirty-nine is not equal to negative thirty-nine.
A. 39 = -39
B. 39 ? -39
C. 39 ? -39
D. 39 ? -39
Answer: B
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Provide an appropriate response.Suppose the velocity of a body moving along the s-axis is 
= 9.8t - 2.Find the body's displacement over the time interval from 
to 
given that 
when 
A. 88.9 B. -1.1 C. 96.9 D. Not enough information is given.
Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 781. Find a linear equation, in slope-intercept form, that relates the score, y, to the number of hours spent in the review course, x.
A. y = -4.025x + 499.25 B. y = 3.6225x - 503.25 C. y = 4.025x + 499.25 D. y = 3.6225x + 503.25
Solve the problem.The polynomial 
gives the approximate total earnings of a company, in millions of dollars, where x represents the number of years since 1996. This model is valid for the years from 1996 to 2000. Determine the earnings for 2000. Round your answer to two decimals, if necessary.
A. $2.8 million B. $2.37 million C. $2.56 million D. $2.06 million
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.
- 
r + 
= 0
A. {-2, 2} B. 0 C. {-2} D. {2}