Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.x2 - x = 42
A. -6, -7
B. -6, 7
C. 6, 7
D. 1, 42
Answer: B
Mathematics
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Change the numbers to their percent equivalents.0.56
A. 0.056% B. 56% C. 560% D. 5.6%
Mathematics
Solve the problem.Find the acute angle ? (in degrees) that satisfies the equation ? = tan-1 (1).
A. 45° B. 180° C. 0° D. 90°
Mathematics
Solve the problem.The table lists the amount of emissions of a certain pollutant in millions of tons.
If the amount of emissions is modeled by a function of the form 
where x is the year, estimate the year in which the amount of emissions will be 
tons.
A. 2090 B. 2020 C. 2075 D. 2050
Mathematics
Solve for the indicated variable. Assume the variable you are solving for must be greater than 0.rm = t2 - mt, for t
A. t = 
B. t = 
C. t = 
D. t = 
Mathematics