Simplify. If an expression does not represent a real number, state this.- 
A. -9
B. -3
C. -2
D. Not a real number
Answer: B
Mathematics
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Find the derivative of the function.y = 
A. y ' = 
B. y ' = 
C. y ' = 
D. y ' = 
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = ti + 
j + k ; C: r(t) = e2ti + e2tj + (2t2 + t)k, -1 ? t ? 1
A. W = 6 B. W = 2 C. W = e2 + e-2 + 2 D. W = e2 + e-2 + 6
Mathematics
Factor.25x4y + 40x3y - 30xy
A. 5x3 + 8x2 - 6 B. 5xy(x3 + x2 - 6) C. 5xy(5x3 + 8x2 - 6) D. 5x3y(5 + 8x2 - 6x)
Mathematics
Solve and graph the solution set on a number line. Express the solution set in both set-builder and interval notations.|5x - 9| - 6 < -8
A. 
B. 
C. ?
D. 
Mathematics