Solve the equation. Write the answer in a + bi form.z3 + 8i = 0
A. -2i, - 
- i, - 
+ i
B. -2i, 
+ i, - 
+ i
C. 2i, - 
- i, 
- i
D. 2i, - 
+ i, 
+ i
Answer: C
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Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: 2i and -4i
A. f(x) = x4 + 20x2 -4x + 64 B. f(x) = x4 + 20x2 + 64 C. f(x) = x4 - 2x3 + 20x2 + 64 D. f(x) = x4 - 4x2 + 64
Allocate overhead as indicated. Round to the nearest dollar.DepartmentFloor spaceA15,400 sq ftB33,500 sq ftC26,900 sq ftD10,200 sq ftOverhead: $627,800
A. $33,500 to A $15,400 to B $33,500 to C $26,900 to D B. $15,400 to A $33,500 to B $26,900 to C $10,200 to D C. $112,420 to A $244,550 to B $196,370 to C $74,460 to D D. $113,960 to A $247,900 to B $190,460 to C $75,480 to D
Solve the equation for the indicated variable.5x - 6y = 12
for y
A. y = 
B. y = 
C. y = 
D. y = 
Find an equation for the ellipse described.Center at (0, 0); focus at (-3, 0); vertex at (5, 0)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1