Select the correct answer. Which expression is equivalent to 2xV441
2 11x3, if x> 0?
O A. 23 111
OB.
6rV222
OC. 2x
OD. 822/11
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Nex

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys