Simplify the expression. Assume that all variables are positive when they appear.2
+ 2
A. 2
B. 18
C. 9
D. 18x
Answer: B
Mathematics
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Find the limit.
A. -? B. Does not exist C. ? D. 0
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Determine whether a scalar or a vector is described.Sarah drives 17 miles directly toward her house.
A. Scalar B. Vector
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Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln(x - 4)
A. 
B. - 
C. 
D. 
Mathematics
Evaluate.
+ 
; x = 5, y = 4, z = -1.
A. -40 B. 40 C. -24 D. 24
Mathematics