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Mathematics 8 Online
zarkam21:

Help please

zarkam21:

1 attachment
Vocaloid:

first step would be to factor out perfect squares of 27 and 48

Vocaloid:

27 can be re-written as 9 * 3 48 can be re-written as 4 * 4 * 3

Vocaloid:

now, try re-writing sqrt(27) and sqrt(48) as multiples of sqrt(3)

zarkam21:

3*9

Vocaloid:

sqrt(27) = _____ * sqrt(3) fill in the blank

zarkam21:

well 16*3 is 48

zarkam21:

3

Vocaloid:

good

Vocaloid:

sqrt(48) = ____ sqrt(3) fill in the blank

zarkam21:

4

Vocaloid:

good so 4 * 3 * sqrt(3) * sqrt(3) = ?

zarkam21:

36

Vocaloid:

good, so 36 is your answer

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