Express the limit as a definite integral on the given interval. lim xi V 7 + x, 3Ax [2, 9] 1 -00 i = 1 V 5x + x2 x dx Need Help? Read It 7. [-/2 Points] DETAILS SCALC9 4.2.022. Express the limit as a definite integral on the given interval. lim -Ax, [1, 7] i= ( x, * ) 2+ 9 dx Need Help? Read It 8. [-/1 Points] DETAILS SCALC9 4.2.026. Express the integral as a limit of Riemann sums using right endpoints. Do not evaluate the limit. 1 ( x 2 + + ) dx lim Ms 1-00 i=1 Need Help? Read it