To which subset of the real numbers does -18 not belong?
1 answer:
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Step-by-step explanation:
a.) 9
When you divide with a fraction you do the reciprocal of the fraction (basically flipping numerator and denominator) then multiplying (since the opposite of division is multiplication.
So if you flip
It would be:
9/1 is the same as 9 so:
1 times 9 = 9
b.) 15
Same thing like we did above, just do the reciprocal the multiply.
Becomes
5/1 is the same as 5.
3 times 5 = 15