$A.\ \frac{3}{3}\times\frac{5}{5}=1\times1=1\neq\frac{3}{5}\\\\B.\ 3\times\frac{1}{5}=\frac{3}{1}\times\frac{1}{5}=\boxed{\frac{3}{5}}\\\\C.\ 5\times\frac{1}{3}=\frac{5}{1}\times\frac{1}{3}=\frac{5}{3}\neq\frac{3}{5}\\\\D.\ \frac{1}{5}\times\frac{3}{5}=\frac{3}{25}\neq\frac{3}{5}\\\\\Rightarrow Answer:\boxed{B}$

8 0

3 years ago

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How is it that a square is a rectangle but a rectangle ins't a square?

Helen [10]

Beacuse A square by definition is a "plane figure having four equal sides." Rectangles' sides are not equal and hence cannot be a square.

A rectangle by definition is a "four-sided plane figure with 4 right angles" - which also implies that a square can be a rectangle because it is also a four-sided plane figure with 4 right angles...... hope this helps

5 0

3 years ago

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Haley simplifies 3^5 · 4^5 and gets the result 12^10, but Lacey is not sure. Is Haley correct?

Ivahew [28]

$\bf 3^5\cdot 4^5\implies (3\cdot 4)^5\implies (12)^5\implies 12^5$