Determine whether the pair of lines is parallel, perpendicular, or neither. 9x + 3y = 1218x + 6y = 27
A. parallel
B. perpendicular
C. neither
Answer: A
Mathematics
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Calculate the flux of the field F across the closed plane curve C.F = (x+y)i + xyj; the curve C is the closed counterclockwise path around the rectangle with vertices at 
and 
A. 120 B. 75 C. 85 D. 175
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Solve.5x - 25 = 4x - 10
A. 16 B. 14 C. 15 D. -7
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Solve.You deposited $4,000 in an account that pays 12% annual interest compounded continuously. Write the equation to determine the amount, A, you will have in t years. How much will you have in 5 years?
A. A = 4,000e0.12t; $7,288.48 B. A = 4,000et; $593,652.61 C. A = 4,000e0.12; $4,509.99 D. A = 4,000(1.01)12t; $7,266.79
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Evaluate -(-x) for the given value of x.x = - 
A. 
B. 44
C. -44
D. - 
Mathematics