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4 years ago

What is the answer to this math equation -1 3/4 -(-1/2) and this one also: -1/5+1 3/4

1 answer:

5 0

$1)\ \ \ -1 \frac{3}{4} -(- \frac{1}{2} )=-1 \frac{3}{4} +\frac{1}{2} =-1 \frac{3}{4} +\frac{2}{4} =-1 \frac{1}{4} \\\\2)\ \ \ - \frac{1}{5} +1 \frac{3}{4} =- \frac{4}{20} +1 \frac{15}{20} =1 \frac{11}{20}$

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Step-by-step explanation:

The hypotenuse of a right-angled triangle = 25 cm

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Let the other side is x.

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Using Pythagoras theorem to find the lengths of the shorter sides.

$x^2+(2x)^2=25^2\\\\x^2+4x^2=625\\\\5x^2=625\\\\x^2=125\\\\x=11.18\ cm$

So, the other side = 11.18 cm

First side = 2(11.18) = 22.36 cm

So, the lengths of the shorter sides are 11.18 cm and 22.36 cm.

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