Add or subtract, if possible. Assume that all variables represent non-negative values and be sure to simplify your answer.3
+ 4
A. 7
B. 49
C. 12
D. 7
Answer: A
Mathematics
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Test the vector field F to determine if it is conservative.F = -csc2 x csc yi - cot x cot y csc yj - cos xk
A. Not conservative B. Conservative
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Use ?, ?, ?, or both ? and ? to make a true statement.{x | x ? N and x > 8} 
{x | x ? N and 3 < x ? 8}
A. ? B. ? C. ? and ? D. ?
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Find the center and graph the hyperbola.
- 
= 1
A. C(-2, -2)
B. C(0, 0)
C. C(-2, 2)
D. C(2, -2)
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Find the amount or rate of discount and the sale price after the discount. Round money answers to the nearest cent if necessary.Original price: $96 Amount of discount: $38.40
A. 4%, $57.60 B. 41%, $57.60 C. 40%, $57.60 D. 42%, $57.60
Mathematics