8,9:find the variables for which ABCD is a parallelogram 10: Based on the markings decide whether each figure must be parallelogram yes or no

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.

Can you explain how a table can be used to find a rate of change?

Simonne used the following steps to simplify the given expression. 12-3(-2x+4) step 1: 12+(-)+(-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? •identity property of addition •inverse property of addition •associative property of addition •commutative property of addition