Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. (z + e)11
C. z + e
D. 
Answer: C
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Find an explicit formula for an.3, 5, 7, 9, 11, . . .
A. an = n + 4 B. an = 2n + 2 C. an = 2n + 1 D. an = n + 5
Find the potential function f for the field F.F = 
i - 6j - 
k
A. f(x, y, z) = 
- 6y + C
B. f(x, y, z) = 
- 6y + C
C. f(x, y, z) = 
- 6 + C
D. f(x, y, z) = 
+ C
Use the given vectors u, v, w, and z to draw the indicated vector. 
2u - z - w
A. 
B. 
C. 
D. 
One way to weigh a very light object is to weigh a large number of the items and then divide to find the weight of one item. Before dividing, the weight of the packaging must be subtracted to find the net weight. Complete the table below. 
?
A. Weight of one item in grams: 0.96 g
Net Weight: 1056 g
Total Weight: 1216 g
B. Weight of one item in grams: 9.6 g
Net Weight: 10,560 g
Total Weight: 10,576 g
C.
| Weight of one item in grams: 0.96 g |
Total Weight: 1072 g
D. Weight of one item in grams: 0.96 g
Net Weight: 1072 g
Total Weight: 1056 g