3 years ago

To which set or sets of numbers does the number -5 belong

1 answer:

7 0

Well, the largest set it belongs to is the set of all real numbers - numbers which can be written on the number line. -5 is of the set of rational numbers since it can be written as a fraction (-5/1 for example). It is an integer since it is a whole number. Thus:

-5 ∈ ℤ (Integers) ∈ ℚ (Rational Numbers) ∈ ℝ (Real Numbers)

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What must be a factor of the polynomial function

saul85 [17]

A^2 - ab + b^2
This is the factoring formula

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3 years ago

A store pays $10.56 fora map of Africa and marks the price up by

nignag [31]

Essentially, 50% of $10.56 is $5.28.

This means that all we have to do is add $10.56 to $5.28, making $15.84

Side note: Another way that you can do this is by simply doing 1.5(10.56).

6 0