Solve the logarithmic equation.log7 (x + 5) = -2
A. 
B. 44
C. - 
D. ?
Answer: C
Mathematics
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Write one or more inequalities that describe the set of points.The exterior of the sphere of radius 2 centered at the point (4, -5, 5)
A. (x + 4)2 + (x - 5)2 + (x + 5)2 ? 4 B. (x + 4)2 + (x - 5)2 + (x + 5)2 < 4 C. (x - 4)2 + (x + 5)2 + (x - 5)2 > 4 D. (x - 4)2 + (x + 5)2 + (x - 5)2 < 4
Mathematics
Determine whether the two pairs of numbers are proportional.130, 12 and 180, 21
A. No B. Yes
Mathematics
Solve the compound inequality. Give the solution set in both interval and graph form.-3x ? -9 or 6x - 4 < 2x
A. (-?, 1) ? [3, ?)
B. (1, 3]
C. [1, 3)
D. ?
Mathematics
Perform the indicated operations.( 5x2 - 5x - 3) + ( -9x2 - 3x + 10)
A. -4x2 - 8x + 7 B. 14x2 - 8x - 13 C. 4x2 + 8x + 7 D. 14x2 - 8x + 13
Mathematics