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nignag [31]
3 years ago
13

I need help with this simplify problem​

Mathematics
1 answer:
nasty-shy [4]3 years ago
7 0

Answer:

Step-by-step explanation:

Numerator = y/ab - ab

   = y/ab - ab * ab/ab       (LCM = ab)

 =  (y - a²b²)/ab

Denominator = 1/a - a/b

                      = 1*b/a*b - a*a/b*a   (LCM = ab)

                      = (b-a²)/ab

(y/ab - ab ) / ( 1/a - 1/b) = (y - a²b²)/ab  *  ab/ (b-a²)

= (y - a²b²)/ (b-a²)

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Draw two different shapes with a perimeter of 16 units. What is the area of each shape?
Nadusha1986 [10]

<u>Shape #1:  A square.</u> 
Every side is  4  units long. 
The perimeter is  16  units.
The area is  <em>16  </em>square units.

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The length is  7.9  units.
The width is  0.1  unit.
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<u>Shape #3:  A circle.</u>
The diameter is  (16/π)  units.  (about  5.093  units)
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8 0
3 years ago
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When building a house, the number of days required to build varies inversely with with the number of workers. One house was buil
Helga [31]

Let d represent number of days and n represent number of workers.

We have been given that when building a house, the number of days required to build varies inversely with with the number of workers.

We know that the equation y=\frac{k}{x} represents the relation where y is inversely proportional to x and k is the constant of proportionality.  

So our required equation would be d=\frac{k}{n}

Upon substituting our given values, we will get:

19=\frac{k}{35}

k=19\cdot 35

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Since constant of proportionality is 665, so our equation would be d=\frac{665}{n}.

To find the number of days it will take to build a similar house with 5 workers, we will substitute n=5 in our equation as:

d=\frac{665}{5}

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5 0
3 years ago
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Answer:

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3 years ago
The graphs of the equations $y=3x-20$ and $y=-2x+10$ intersect at the point $(6,-2)$. Without solving, find the solution of the
Maru [420]

Answer:

The solution is

\boxed{x=6,y=-2}

Step-by-step explanation:


The given equations are


y=3x-20


and

y=-2x+10


The graph of the two equations intersects at (6,-2) as show in the graph in the attachment.


The point of intersection of the two graphs is the solution to system of equations.

Hence the solution is

x=6,y=-2

4 0
3 years ago
How<br> Do you graph 2x+8y=-32
Neporo4naja [7]
First, subtract 2x from both sides of the equation to get 8y = -2x - 32. Then, divide the equation by 8, to get y = -x/4 - 4. Your y-intercept will be -4, and it's slope will be -1/4.
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