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alexandr1967 [171]
3 years ago
6

PLEASE HHELP!!! Bring the fraction:

Mathematics
1 answer:
Anna35 [415]3 years ago
8 0

Answer:

\frac{b}{7a^2c} = \frac{5abc^2}{35a^3c^3}

\frac{a}{a - 4} = \frac{-a^2 - 4a}{16 -a^2}

Step-by-step explanation:

Given

\frac{b}{7a^2c}

Express the denominator as 35a^3c^3

To do this, we divide35a^3c^3 by the denominator

\frac{35a^3c^3}{7a^2c} = 5ac^2

So, the required fraction is:

\frac{b}{7a^2c} * \frac{5ac^2}{5ac^2}

\frac{5abc^2}{35a^3c^3}

Hence:

\frac{b}{7a^2c} = \frac{5abc^2}{35a^3c^3}

Given

\frac{a}{a - 4}

Express the denominator as 16 - a^2

Multiply the fraction a+4/a+4

So, we have:

\frac{a}{a - 4} * \frac{(a + 4)}{(a + 4)}

Apply difference of two squares to the denominator

\frac{a^2 + 4a}{a^2 - 16}

Take the additive inverse of the numerator and denominator

\frac{-(a^2 + 4a)}{-(a^2 - 16)}

\frac{-a^2 - 4a}{16 -a^2}

Hence:

\frac{a}{a - 4} = \frac{-a^2 - 4a}{16 -a^2}

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The perimeter of a rectangular field is 340 yards. The length is 90 yd longer than the width. Find the dimensions.
Alexus [3.1K]

Answer:

length= 100 width=70

Step-by-step explanation:

The perimeter of a rectangular field is 340 yds.  

The length is 30 yds longer than the width.  

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Width: 70 yds.

8 0
3 years ago
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It costs $5 to get into the state park, plus $12 per night for you to camp there. If you have a total of $137 to
Dahasolnce [82]

Answer:

11 nights

Step-by-step explanation:

Our total budget: $137

First, let's deduct the cost to enter the park.

137 - 5 = 132

We have $132 to spend on the hotel.

Since the cost is $12 per night, we need to find out how many times $12 can go into $132. This is done using division.

132 / 12 = 11

As we can see, we can pay $12 eleven times until our money runs out.

Thus, we can stay at the camp for 11 nights!

Answer: 11 nights

4 0
4 years ago
What is 3.3=x divided by 3<br><br><br> what is X<br><br> * its not 9.9 i already tried that
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Answer:

It's 9.9. Try it one more time.

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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