Consider the interval (-in, 0]. For each numerical value below, is it in the interval or not?

Algebra
Tutor: None Selected Time limit: 1 Day

Aug 30th, 2015

Hello!

Answers: yes, no, no, yes, yes.

Reasons. The interval given is the set of numbers <= 0.

1) -5^2 means (-1)*(5^2) = -25 < 0;
2) |-2.6| = 2.6 > 0;
3) 8^(-6) = 1/(8^6) >0;
4) -7.4*10^8 < 0 (negative number * positive number);
5) 0/4 = 0 <= 0.

Please ask if anything is unclear.
Aug 30th, 2015

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Aug 30th, 2015
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Aug 30th, 2015
Dec 7th, 2016
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