What is the factored form of the difference of two squares.<br>

Identify the variation as a direct, inverse, joint, or combined.<br> xy/z=c

Korvikt [17]

The given equation is a combined variation.

We have been given an equation is

$\frac{xy}{z}$

This is an equation in which we have three variables and one constant.

This can not be the case of direct or inverse variation because in direct or inverse variation we have only two variables. Whereas, here we have three variables.

So, Direct and inverse options are discarded.

So, either It can be joint or combined

In joint variation both the variables are directly proportional

Hence, given equation is not joint because if we rewrite the equation we will get $y = \frac{cz}{x}$ both the variables are not directly proportional.

In combined, one variable is directly proportional and the other one is inversely proportional.

From $y = \frac{cz}{x}$ we can see that z is directly proportional and x is inversely proportional.

Hence the answer is, the given equation is combined variation.

To learn more about variations click here brainly.com/question/2375770

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3 0

1 year ago

The silver bar is 15cm long. The bar is melted and the silver is then made into a cuboid. The base of the cuboid is 10cm by 10 c

marishachu [46]

The question is impossible to answer since. Since you can't answer that without knowing the volume of the bar to start with. The only given is the length, there should be other dimensions like the width and area of the cross-section, for instance.
Volume = Width x Depth x Height in all cases, so when you know the volume. But to solve for the height of the cuboid, the equation is V/100 (because the base of the cuboid is 100 cm^2)

3 0

3 years ago

How do I simplify this? Please help

algol13

4y-5/y^2-3y+2
4y-5/(y-2)(y-1)

3 0

3 years ago

Maria, an experienced shipping clerk, can fill a certain order in 9 hours. Jim, a new clerk, needs 11 hours to do the same job.

tester [92]

Answer:

4 19/20 hours or 4 hours , 57 minutes

Step-by-step explanation:

Given

In 9 hours Maria can fill a certain order let Say X

In 9/9 hours Maria can fill X/9 of the order

in 1 hour Maria can fill X/9 of the order

__________________________________

In 11 hours Jim can fill a certain order let Say X

In 11/11 hours Maria can fill X/11 of the order

in 1 hour Maria can fill X/11 of the order

_____________________________________________

Therefore total order filled by them in one hour will sum of individual work done by them in one hour.

Mathematically,

total order filled by Jim and maria in one hour = work done by Jim in one + work done by Maria in one hour

total order filled by Jim and maria in one hour = 1/11 + 1/9

=> $1/11 + 1/9 \\=> (9 + 11)/11*9\\=> 20/99$

=>20/99 of certain order is filled by both of them in one hour.

=>Total order is one. Hence, to get 1 from 20/99 we need to multiply it with its reciprocal (i.e 99/20) as 20/99 *99/20 = 1

now

=>20/99 of certain order is filled by both of them in 1 hour.

=>multiplying both order and hour with 99/20 we have

20/99 *99/20 of certain order is filled by both of them in 1* 99/20 hour

Thus total order is filled by them in 99/20 hours = 4 19/20 hours.

1 hour has 60 minutes

so 19/20 has 60*19/20 minutes = 57 minutes.

Working together, Jim and Maria will take 4 hours , 57 minutes to fill the order.

3 0

3 years ago

Which shapes have parallel sides

guajiro [1.7K]

Answer:

All parallelograms have at least 1 parallel side.(Rectangles,squares,rhombuses,etc.)Trapezoids also have parallel sides.

Step-by-step explanation:

3 0

3 years ago