Which is the correct simplified version of the expression 5(-9x+15)?
2 answers:
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1. False because a rational is a fraction or part of a number (
). 
2. True; a real number is any number that isn't imaginary (
)
3. True; same reason
4. True; an integer is any number that can be wrote without a fraction or decimal (the opposite of rational).
5. True;
and that's a decimal.
6. True; the natural number system starts from 0 and counts upwards
7. True; reason above
2. True; a real number is any number that isn't imaginary (
3. True; same reason
4. True; an integer is any number that can be wrote without a fraction or decimal (the opposite of rational).
5. True;
6. True; the natural number system starts from 0 and counts upwards
7. True; reason above
the answer of 2x +y = 20 ; 6x -5y =12
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