Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 1?
A. 
B. 
, 
C. 0, 2?
D. none
Answer: C
Mathematics
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Find the foci of the given hyperbola.
- 
= 1
A. (4, -20), (4, 12) B. (4, -24), (4, 16) C. (-24, 4), (16, 4) D. (-20, 4), (12, 4)
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
Find the missing factor.42m11n12 - 28m11n5 = 7m6n3 ? (?)
A. 6m5n9 - 4m5n2 B. 6m7n9 - 6m5n2 C. -6m5n9 + 4m5n4 D. 7m5n9 + 3m6n2
Mathematics
Find the integral using an appropriate trigonometric substitution.
Mathematics