Write the expression in the standard form a + bi.2i15 - i7
A. -i
B. 1
C. -1
D. i
Answer: A
Mathematics
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Simplify the rational expression. If the rational expression cannot be simplified, so state.
A. 
B. 
C. 
D. cannot be simplified
Mathematics
Determine if the given ordered triple is a solution of the system.(5, -5, -2)
A. not a solution B. solution
Mathematics
Use the Gauss-Jordan method to solve the system of equations.
A. x = -3, y = 5, z = 6 B. x = 3, y = 5, z = 8 C. x = 3, y = 8, z = 5 D. No solution
Mathematics
Without graphing the function, determine its amplitude or period as requested.y = 4 sin xFind the amplitude.
A. 4?
B. 4
C. 2?
D. 
Mathematics