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Zina [86]
3 years ago
5

F(x) = x + 2 g(x) = 3x + 3 Find (f•g)(-6)

Mathematics
1 answer:
Lunna [17]3 years ago
4 0

Answer:

(-4*-15) = 60

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Maya can run 18 miles in 3 hours, and she can run can bike 18 miles in 2 hours. What is maya’s running speed (in mph)
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Answer:

6 mph

Step-by-step explanation:

Speed = Distance/Time. Distance is 18, time is 3. So 18/3, or 6.

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6 0
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Can someone please help with this math question:)
Bingel [31]

<u>Solution</u><u>:</u>

The rationalisation factor for \frac{1}{ a -  \sqrt{b}  } is a + \sqrt{b}

So, let us apply it here.

\frac{1}{5 -  \sqrt{2} }

The rationalising factor for 5 - √2 is 5 + √2.

Therefore, multiplying and dividing by 5 + √2, we have

=  \frac{1}{5 -  \sqrt{2} }  \times  \frac{5 +  \sqrt{2} }{5 +  \sqrt{2} }  \\  =  \frac{5 +  \sqrt{2} }{(5 -  \sqrt{2})(5 +  \sqrt{2} ) }  \\  =  \frac{5 +  \sqrt{2} }{ {(5)}^{2} - ( \sqrt{2})^{2}   }  \\  =  \frac{5 +  \sqrt{2} }{25 -  2}  \\  =  \frac{5 +  \sqrt{2} }{23}

<u>Answer:</u>

<u>\frac{5 +  \sqrt{2} }{23}</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
2 years ago
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Do they put on laughing gas for when you get your braces? And do they numb your teeth-?
tekilochka [14]

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Step-by-step explanation:

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923

Step-by-step explanation:

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3 years ago
Why is 0.03 less than 7.85?
IRINA_888 [86]
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