Perform the indicated operation and reduce the answer to lowest terms.
+ 
A. 
B. 
C. 
D. 1
Answer: A
Mathematics
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Find the potential function f for the field F.F = - 
i + 
j - 
k
A. f(x, y, z) = 
- 
+ 
+ C
B. f(x, y, z) = 
+ C
C. f(x, y, z)= ln 
+ C
D. f(x, y, z) = ln (y - x - z) + C
Mathematics
Solve the problem.If g(x) = (x + 3)2, find all values of x for which g(x) = 15.
A. ±
B. -3 ± 
C. 3 ± 
D. ± 
Mathematics
Graph the system of inequalities, and find the coordinates of the vertices.3y + x ? -6,y + 2x ? 8,y ? 0,x ? 0
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A one-story building is 180 ft by 490 ft. If a square patio with sides 25 ft occupies the center of the building, how much area remains for offices?
A. 1240 ft2 B. 1315 ft2 C. 87,575 ft2 D. 1340 ft2
Mathematics