Question

CAN SOMEONE PLEASE CHECK MY ANSWERS?

What is the correct reason for statement 2 in the proof?









A.

Identity Property of Addition








B.

Inverse Property of Addition <--My choice.








C.

Addition Property of Equality








D.

Multiplication Property of Equality

http://static.k12.com/bank_packages/files/media/mathml_14856d5b75a7ed58d75ccdc0f96a0fefad76d329_1.gif

Answer 1

http://static.k12.com/bank_packages/files/media/mathml_d2b054b0a10d01c72fd6f0f305dc306b1fbf4d4f_1.gif


What is the correct reason for statement 3 in the proof?









A.

Identity Property of Addition <---My choice








B.

Distributive Property








C.

Commutative Property of Addition








D.

Associative Property of Addition

Answer 2

http://static.k12.com/calms_media/media/241500_242000/241717/1/df3cf17994fc430c99173feeeea199ec3bf26637/07_07_LQ_4.gif


Statement 6









A.
Identity Property of Multiplication







B.
Symmetric Property of Equality <--My choice







C.
Given







D.
Transitive Property of Equality

Answer 3

Which of the following steps in this proof contains a flaw?

http://static.k12.com/calms_media/media/241500_242000/241719/3/8658464703238b9b40a6ed835961c979f0576954/07_07_LQ_5.gif


A.

Step 2 (subtracted wrong expression)








B.

Step 4 (not a difference of squares)<--My choice








C.

Step 3 (factored incorrectly)








D.

Step 5 (wrong factors)