Indicate the property that justifies the statement.-2(xy) + z = (-2x)y + z

A. Associative property of multiplication
B. Distributive property
C. Associative property of addition
D. Commutative property of multiplication


Answer: A

Mathematics

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Add the polynomials.(7y + 12) + (6y + 14)

A. 13y + 26 B. 13y - 26 C. 13y2 + 26 D. 42y2 + 168

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Solve.The long jump record, in feet, at a particular school can be modeled by  where x is the number of years since the school was opened. What is the record for the long jump  after the school opened? Round the answer to the nearest tenth.

A. 26.4 ft B. 22.8 ft C. 26.2 ft D. 26.6 ft

Mathematics

Write the augmented matrix for the system. 8x + 3y =  34 7x + 7y =  21

A.

B.

C.

D.

Mathematics

True or False? ?

What will be an ideal response?

Mathematics