2 years ago

21 less than tree-fifths of a number

Mathematics

1 answer:

Oxana [17]2 years ago

6 0

(3/5)x - 21

hope this helps :)

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iren [92.7K]

Answer:

$\frac{1}{2} + \frac{1}{3} = \frac{5}{6}$

Step-by-step explanation:

1/2+1/3 L.C.M = 6

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2 years ago

The Pythagorean theorem is a² + b² = c². Solve for b. b=±c+a−−−−√ b=±c2−a2−−−−−−√ b=±c2+a2−−−−−−√ b=±c−a−−−−√

uysha [10]

$a^{2} +b^{2} =c^{2}$

As we have to solve for b, it means we have to isolate b

So first of all subtract $a^{2}$ from both sides

So we get

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Now we need b , but its b^2 , so we can take square root on both sides.

taking square roots on both sides

$b= +- \sqrt{c^2 -a^2}$

Hence option B is correct

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Step-by-step explanation:

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