Explain how to use properties to prove d + (8d + 1) + 7 is equivalent to 8 + 9d.

Mathematics

2 answers:

SVEN [57.7K]4 years ago

8 0

Answer:

Exact response: Use the associative property to move the parentheses, and the expression becomes (d + 8d) + 1 + 7. Combine like terms, and the expression becomes 9d +8. Use the commutative property to change the order of the terms, and the expression becomes 8 + 9d.

Nadya [2.5K]4 years ago

7 0

Answer:

Use the associative property to move the parentheses, and the expression becomes (d + 8d) + 1 + 7. Combine like terms, and the expression becomes 9d +8. Use the commutative property to change the order of the terms, and the expression becomes 8 + 9d.

Step-by-step explanation:

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e-lub [12.9K]

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7 0

3 years ago

If p is true and q is false, the p->q is ____ true. never always sometimes

ratelena [41]

Answer:

never

Step-by-step explanation:

p->q means if p is true, then q must also be true

but since q is false, p->q is never true

5 0

3 years ago