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Mashutka [201]
3 years ago
9

Find the difference. express your answer in simplest form. (2s/s^2-4s+4) - (4/s^2-4s+4)

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
5 0
To find the difference, we are going to destroy the parenthesis first, and then, we are going to perform the operations. Remember that to destroy a parenthesis preceded by a negative sign (-), you should change the signs of the factors inside the parenthesis:
\frac{2s}{s^2-4s+4} -( \frac{4}{s^2-4s+4} )
\frac{2s}{s^2-4s+4} -\frac{4}{s^2-4s+4}= \frac{2s-4}{s^2-4s+4}

Now we can factor both numerator and denominator and simplify:
\frac{2s-4}{s^2-4s+4} = \frac{2(s-2)}{(s-2)^2} = \frac{2}{s-2}

We can conclude that the difference in simplest form is: \frac{2}{s-2}
Phantasy [73]3 years ago
4 0
To get started, combine <span>-4s+4 with 4s - 4.  Result:  0.  That leaves

 2s        4          2(s+2)
------ - ------- = ------------
s^2      s^2           s^2</span>
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in a circular garden the distance from the center of the circle to the edge is 15ft . If a gardner wants to plant roses in a 60
olya-2409 [2.1K]

Answer:

Approximately 117.81 ft²

Step-by-step explanation:

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A=πr²

A=π(15)²

A=706.86 ft²

Now you need to find the area of the garden covered in roses, so take the total degrees in a circle (360) and divide it by the degrees of the roses (60).

360/60=6

Take the area of the whole circle (706.86 ft²) and divide it by the number you just got (6). The number you get will be the area of the rose section.

706.86/6= 117.81 ft²

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3 years ago
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Step-by-step explanation:

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3 years ago
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Katena32 [7]

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5 0
3 years ago
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Please answer this question
Gnesinka [82]

Answer:

There are 20 kids total in the class.

Step-by-step explanation:

15/100 × 20 = 3  

You can use direct proportion for any percent calculation.

Compare each number with its percent.

3 i s  15 %  of what number? Let the number be  x

So, 3  represents  15 %  and  x  represents  100 %

x/ 100   =  3/15  

Multiply by  100  to isolate  x

x  = \frac{3 x 100}{15}

x  =  20

Check:  15/ 100 × 20 = 3

3 0
3 years ago
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