Find u×v.
?
?
A. 
B. -23
C. -17
D. 
E. 
Answer: A
Mathematics
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Solve the rational inequality. Express the solution using interval notation.
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A. (-?, -21) ? (-1, 4) B. (-21, -1) ? (-1, 4) C. (-21, -1) ? (4, ?) D. (-?, -21) ? (4, ?)
Mathematics
Find all values of ? in [0, 360°) for which the following is true.cos ? = 
A. 60° and 120° B. 210° and 330° C. 60° and 300° D. 150° and 210°
Mathematics
Use a calculator to find the approximate value of the expression rounded to two decimal places.sec 
A. 0.98 B. 0.94 C. 1.00 D. 1.04
Mathematics
Solve.
r - 
r = r - 
A. {0}
B. 
C. 
D. {-5}
Mathematics