3 years ago

Is this a proportional equation? Explain your answer. y=-3/5x

Mathematics

1 answer:

tatuchka [14]3 years ago

5 0

I dont even know , I’m confused

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3 years ago

A tree's height increase by 15%. If a tree is 23 feet high, how tall will it be in one year ?

Ghella [55]

Increased height:-

$\\ \sf\longmapsto 23\times 15\%$

$\\ \sf\longmapsto 23\times \dfrac{15}{100}$

$\\ \sf\longmapsto \dfrac{345}{100}$

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2 years ago

Rationalize the denominator of 4/14 root 2?

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First of all, you can simplify the 4 at the numerator and the 14 at the denominator (they're both multiple of 2):

$\dfrac{4}{14\sqrt{2}} = \dfrac{2\cdot 2}{2\cdot 7\cdot\sqrt{2}} = \dfrac{2}{7\sqrt{2}}$

Now, rationalize a denominator means that you have to get rid of the square root, in order to have an integer denominator.

To do so, remember that you can always multiply any number by 1 without changing its value, and you can always think of 1 as a fraction where numerator and denominator are equal:

$\dfrac{2}{7\sqrt{2}} = \dfrac{2}{7\sqrt{2}}\cdot 1 = \dfrac{2}{7\sqrt{2}} \cdot \dfrac{\sqrt{2}}{\sqrt{2}} = \dfrac{2\sqrt{2}}{7\cdot 2} = \dfrac{\sqrt{2}}{7}$

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3 years ago

What is the word form for 5.921

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Five and nine hundred twenty-one thousandths

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