Which of the following statements is true? a reference angle may be obtuse. a reference angle is always acute. a reference angle is between 0 and 180 degrees. a reference angle can be negative.

Find the slope of the line y =8/9x + 1.

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. the heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. match the measures of this data with their values.

What percent of the circle below is shaded?