4x-2x+8 6x+4) step work justification 4x-2x+8 6x + 24 | dstributive property 2 2x+8 6x+24 combine like terms 3 ax+8- 24 addition property of equality subtraction property of equality x --4 |dives on property of equality # which step has an incorrect justfication? (make sure to type only the number of the step into the blank: 1,2,3,4 or 5) numerical answers expected

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.

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details