3 9/100 + 2 8/10 = ? ?/100 help its 4 a friend!!!

1 answer:

4 0

For the fraction 28/10,
times 10 at 28 and 10,(to get the same denominator"100")
28×10=280
10×10=100

Thus,
28/10 become 280/100

We can plus the number above the denominator"100",which is 39 and 280.It is because they have achieved a same denominator.
39/100+280/100
=(39+280)/100
=319/100

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Read 2 more answers

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just olya [345]

We're told (and we can confirm) that $v_3=2v_1-3v_2$ , so $v_3$ is a linear combination of the other two vectors.

This means H is sufficiently spanned by $\{v_1,v_2\}$ ; no need for the third vector.

But this also means we can write either $v_1$ as a linear combination of $\{v_2,v_3\}$ , and $v_2$ as a lin. com. of $\{v_1,v_3\}$ . So any set of these three vectors taken two at a time will span the subspace H. Hence all of b, c, and d are acceptable.