Angle A is the complement of angle B.
Which equation about the two angles must be true?

A) cos B = sin B
B) sin A = sin B
C) cos A = sin B
D) sin A = cos A

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42