Determine whether the statement is true or false, and explain why.
the volume of the solid formed by revolving the function f(x) = √x^2+1 about the x-axis on the interval [1, 2] is given by ∫^2_1π√x^2+1 dx.

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Which expression will have the same sum as 3_8 + 1/4?

Find the missing dimension extra points