Use the commutative and/or associative laws to write a series of steps verifying the given statement.(7 + y) + 7 is equivalent to y + 14

What will be an ideal response?


(7 + y) + 7 = (y + 7) + 7 Using the commutative law
= y + (7 + 7) Using the associative law
= y + 14 Simplifying

Mathematics

You might also like to view...

Use the quadratic formula to solve the equation.x2 + 7x + 4 = 0

A.
B.
C.
D.

Mathematics

Rationalize the denominator.

A. 5
B.
C. 5
D.

Mathematics

Find the indicated cross product.v = -3i - 4j + 3k, w = -5i + 3kFind w × v.

A. 20i - 12j + 12k B. 12i + 6j - 12k C. 12i + 6j + 20k D. -6i - 12j + 20k

Mathematics

Find the distance between the points (4, -5) and (9, 0).  Round the answer to the nearest tenth. ?

A. 7.1 B. 7.4 C. 7.3 D. 7.5 E. 6.9

Mathematics