Simplify the rational expression. Use factoring, and assume all variable expressions represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use Stokes' Theorem to calculate the circulation of the field F around the curve C in the indicated direction.F = 4yi + 6xj - 4z3k ; C: the portion of the plane 8x + 2y + 2z = 7 in the first quadrant
A. 2
B. 0
C. - 
D. 
Mathematics
Find the expected value.Numbers is a game where you bet $1.00 on any three-digit number from 000 to 999. If your number comes up, you get $600.00. If your number doesn't come up, you lose your $1. Find the expected net winnings.
A. -$1.00 B. -$0.50 C. -$0.42 D. -$0.40
Mathematics
Estimate the sum or difference by rounding each number to the nearest ten.84 - 18
A. 70 B. 60 C. 100 D. 66
Mathematics
Evaluate the expression.
A. 
B. 
C. 
D. 
Mathematics