what has 4 ten thousands twice as many thousands than ten thousand 5 hundred four tens and half as many ones than tens

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.

Which point does not lie on the graph k(x) = 8 -3 √x a. (-64, 12) b. (125, 3) c. (343, 1) d. (8, 5)