25 points!

complete the two-column proof.

given: quad is an isosceles trapezoid

prove: ∠uaq = ∠qdu

statements reasons
1.given
2.qd = ua
3.qu = qu
4.diagonals of an isosceles trapezoid are equal.
5.sss
6.∠uaq = ∠qdu

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

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Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.