What is the exact value of Tangent (StartFraction 9 pi Over 8 EndFraction)?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth

Simplify this expression. 8x 16(x + y)

Which method of gathering data will be most effective in learning how diet and fitness choices affect long-term healt