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BlackZzzverrR [31]
3 years ago
15

Simplify the expression 9 (a - 4)

Mathematics
2 answers:
OleMash [197]3 years ago
7 0
9a - 36 distribute everything
Svet_ta [14]3 years ago
5 0
9a-36. Multiply the 9 by a, to give you 9a. Then by -4 to give you -36. All together that becomes 9a-36.
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What percent of the bar below is shaded?
Ipatiy [6.2K]

Answer:

50%(???)

Step-by-step explanation:

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II. Evaluate the following expressions.
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8 0
3 years ago
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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B3%2F7%7D%7B7%5Csqrt%7B10%7D%2F2%20%7D" id="TexFormula1" title="\frac{3/7}{7\sqrt{10}
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\dfrac{\dfrac37}{\dfrac{7\sqrt{10}}2}\times\dfrac{14}{14}=\dfrac{3\times2}{7\sqrt{10}\times7}=\dfrac6{49\sqrt{10}}

Rationalize the denominator by multiplying both numerator and denominator by √10:

\dfrac6{49\sqrt{10}}\times\dfrac{\sqrt{10}}{\sqrt{10}}=\dfrac{6\sqrt{10}}{49(\sqrt{10})^2}=\dfrac{6\sqrt{10}}{49\times10}=\dfrac{6\sqrt{10}}{490}

Lastly, cancel the common factor of 2 in both the numerator and denominator (which comes from 6 = 2×3 and 490 = 2×245):

\dfrac{6\sqrt{10}}{490}=\dfrac{3\sqrt{10}}{245}}

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3 years ago
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Answer:

Step-by-step explanation:

Hello, please consider the following.

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