Solve the combined inequality. Write the solution in interval notation.5x + 2 > 4x + 1 ? 7x
A. ?
B. 
C. (-?, ?)
D. 
Answer: B
Mathematics
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Graph the ellipse and locate the foci.16x2 + 4y2 = 64
A. foci at (2
, 0) and (-2
, 0)
B. foci at (0, 2
) and (0, -2
)
C. foci at (
, 0) and (-
, 0)
D. foci at (2
, 0) and (-2
, 0)
Mathematics
Write the expression in the standard form a + bi.
2
A. i
B. -i
C. - 
D. 
Mathematics
Simplify. Assume that all variables represent positive real numbers.-3
- 9
A. 11
B. -5
C. -12
D. 6
Mathematics
Add.2x5 + 8x4 + 2x3 + 3 and 6x5 + 9x4 + 6x3 + 5
A. 8x5 + 17x4 + 8x3 + 8 B. 33x24 + 8 C. 12x5 + 12x4 + 7x3 + 14 D. 8x10 + 17x8 + 8x6 + 8
Mathematics