Find the sum or difference. Write the answer in standard form.7i + (-3 - i)
A. -3 + 8i
B. 3 - 6i
C. -3 + 6i
D. 3 - 8i
Answer: C
Mathematics
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Factor the trinomial completely.x3 + 8x2 + 16x
A. x(x + 4)2 B. x(x + 4)(x - 4) C. x(x - 4)2 D. prime
Mathematics
The x- and y-coordinates of a point in quadrant III are consecutive even integers whose product is 360. Find the coordinates of the point.
A. (20, 18) B. (–20, –18) C. (–24, –22) D. (24, 22)
Mathematics
Find the vertices and locate the foci for the hyperbola whose equation is given.81x2 - 100y2 = 8100
A. vertices: (-10, 0), (10, 0)
foci: (-
, 0), (
, 0)
B. vertices: (-9, 0), (9, 0)
foci: (-
, 0), (
, 0)
C. vertices: (-10, 0), (10, 0)
foci: (-
, 0), (
, 0)
D. vertices: (0, -10), (0, 10)
foci: (0, -
), (0, 
)
Mathematics
Simplify the expression.  figure 1.png)
 figure 2.png)
Mathematics