Find the exact area of the surface obtained by rotating the curve about the x-axis. y = sin (x/9) , 0 ≤ x ≤ 9

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8