Simplify. Assume all variables represent nonnegative values.
A. 2x + 2 + 
B. 2x - 2
C. 2x + 2
D. -2x + 4
Answer: C
Mathematics
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Determine whether F is conservative.F(x,y, z) = (5y - 15x sin z)i + (5x + 15 cos z)j + ezk
A. conservative B. not conservative
Mathematics
If possible, find the matrix product of AB.A = 
; B = 
A. AB = 
B. AB = 
C. AB = 
D. AB = 
Mathematics
State whether the function is a polynomial function or not. If it is, give its degree.f(x) = 12x5 - 4x4 + 2
A. Yes; degree 9 B. Yes; degree 10 C. Yes; degree 5 D. Not a polynomial
Mathematics
Solve. Round to two decimal places unless otherwise noted.Suppose the cost per ton, C(x), to build an oil platform of x thousand tons is approximated by 
What is the cost per ton for 400 thousand tons?
A. $119.05 B. $47,619.05 C. $31.25 D. $200,000.00
Mathematics