Evaluate the expression without using a calculator.
-1/5
A. 1,125,899,906,842,624
B. -4
C. - 
D. 4
Answer: B
Mathematics
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Provide an appropriate response.Find the direction in which the function is increasing most rapidly at the point P0.f(x, y, z) = xy - ln(z), P0(2, -2, 2)
A. 
(-4i - 4j + k)
B. 
(-4i + 4j - k)
C. 
(-4i + 4j - k)
D. 
(-4i + 4j - k)
Mathematics
Simplify.i8
A. -i B. 1 C. -1 D. i
Mathematics
Solve the system by substitution, if possible.
A) (11, –2)
B) (8, 4)
C) (–3, 12)
D) (–4, –7)
E) no solution; inconsistent system
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.(
+ 5)(
- 5)
A. 31
B. -19
C. 6 - 2
D. 1
Mathematics