Plot the complex number in the complex plane.2 + i
A. 
B. 
C. 
D. 
Answer: A
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Find the absolute and relative errors.The length of the piece of fabric is 25 inches but you measure it as 23.8 inches.
A. absolute error: -1.2 inches relative error: -12% B. absolute error: 1.2 inches relative error: 4.8% C. absolute error: -1.2 inches relative error: -5% D. absolute error: -1.2 inches relative error: -4.8%
Find the equation in standard form of a hyperbola centered at the origin that passes through the given points and whose graph approaches the given asymptotes.(-4, 0) and (4, 0); y = - 
x and y = 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the equation by completing the square.x2 + 4x - 7 = 0
A. {-2 - 1
, -2 + 1
}
B. {-1 - 
, -1 + 
}
C. {-2 - 
, -2 + 
}
D. {2 + 
}
Find an equation of an ellipse satisfying the given conditions.Foci: (0,-4) and (0, 4) ; length of major axis: 14
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 