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Gekata [30.6K]
3 years ago
11

Can someone help me with this

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
7 0

Answer:

D. \frac{{7}^{11} }{ {4}^{11} }

Step-by-step explanation:

( \frac{7}{4}) {}^{11} = \frac{7 {}^{11} }{4 {}^{11} }

Since we are multiplying an exponential number to a fraction the answer is going to be

\frac{7 {}^{11} }{4 {}^{11} }

Hope this helps ❤❤❤ ;)

ira [324]3 years ago
5 0

Answer:

D.  \frac{7^{11} }{4^{11} } \\

Step-by-step explanation:

Hello, I can help you with this

Let's remmber some propiertis of the fraction numbers and the potenciation

Let

a^{m} *  a^{n}=a^{m+n}\\(a^{m})^{n}=a^{m*n}\\(\frac{a}{b})^{m}=\frac{a^{m} }{b^{m}}

Step 1

All you have to do is identify and use the formula

let

(\frac{7}{4})^{11}\\ a=7\\b=4\\m=11\\so\\(\frac{7}{4})^{11}=\frac{7^{11} }{4^{11} } \\

so, the answer is D.

I hope it helps, have a nice day

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Bumek [7]

Answer:

1. 8.5 yards.

2. $42.5

Step-by-step explanation:  

We have been given that Sue buys 5 pieces of fabric. Each piece is 1\frac{7}{10} yards long.

1. To find the total length of fabric bought by Sue we will multiply length of each fabric piece by 5.

\text{Total length of the fabric}=5\times 1\frac{7}{10}\text{ yards}

\text{Total length of the fabric}=5\times \frac{17}{10}\text{ yards}

\text{Total length of the fabric}=\frac{17}{2}\text{ yards}

\text{Total length of the fabric}=8.5\text{ yards}

Therefore, Sue bought 8.5 yards of fabric.

2. 1 yard of fabric costs $5.

So 8.5 yards of fabric will cost : 5*8.5

\text{Total cost of the fabric}=5\times 8.5

\text{Total cost of the fabric}=42.5

Therefore, the cost of total fabric bought by Sue is $42.5.

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3 years ago
Ria can paint a room in 4 hours. Destiny can paint the same room in 6 hours. How long would it take Ria and Destiny to paint the
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Time taken by Ria to paint a room = 4 hours

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x=\frac{12}{5}

Hence, both of them can paint the room in \frac{12}{5} hours or 2.4 hours.


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Answer:

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Step-by-step explanation:

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