The volume of cylinder closed at one end is 1056cm cube. If its height is 21cm find its :(I)diameter (ii)total surface area

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Two lines parallel to the same plane are parallel to eachother

Which of the following are accepted without proof in a logical system? check all that apply.