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3 years ago

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]

Shape #1: A square.
Every side is 4 units long.
The perimeter is 16 units.
The area is 16 square units.

Shape #2: A rectangle.
The length is 7.9 units.
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The area is 0.79 of a square unit.

Shape #3: A circle.
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8 0

3 years ago

Read 2 more answers

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:

$19=\frac{k}{35}$

$k=19\cdot 35$

$k=665$

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:

$d=\frac{665}{5}$

$d=133$

Therefore, it will take 133 days for 5 workers to build a similar house.

5 0

3 years ago

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mash [69]

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 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.

5 0

3 years ago

I need help with this simplify problem​

I need help with this simplify problem