Find the power of i.i27
A. -i
B. i
C. 1
D. -1
Answer: A
Mathematics
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Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them. 6x - 3y + 4z = 9 4x + 8y + 6z = 9 18x - 9y + 12z = 2
A. x = 0, y = 0, z = 0 B. x = 9, y = 9, z = 2 C. x = 3, y = 3, z = -1 D. Inconsistent
Mathematics
Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. - 
B. - 
C. - 
D. 
Mathematics
Simplify.
3
A. 
B. 125mn
C. 
D. 
Mathematics
Solve. Write the answer as a mixed number in simplest form.A wall in Alex and Carla Dinu's garden is to be built using brick that is 2
inches wide and a mortar joint that is 
inch wide. Use the diagram to find the height of the wall.
A. 13
in.
B. 14
in.
C. 14
in.
D. 13
in.
Mathematics