|-5+(-8)| simplified

Mathematics

2 answers:

Brut [27]4 years ago

8 0

Answer:

the answer for this question will be -13

Gnesinka [82]4 years ago

4 0

Answer:

Step-by-step explanation:

-5 + (-8) = -13

Because it is measuring the absolute value, the answer must be positive. Therefore, the answer is simply 13.

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Answer:

Step-by-step explanation:

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Show that if x, y, z are integers such that x^3+5y^3 = 25z^3, then x = y = 0.

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Answer:

3125*k^9 + y^3 is an integer my closure property.

but 5^(1/3) is not an integer, which forces z to be irrational.

Note that there is no way an integer value can rationalize 5^(1/3)

Step-by-step explanation:

x^3 = 25z^3 - 5y^3

x^3 = 5 ( 5z^3 - y^3)

x = (5 ( 5z^3 - y^3) )^(1/3) must be an integer