There are manu instruments capable of measuring liquid
volume:
In laboratories, typical volume measuring devices include
graduated cylinders and beakers, and measuring/volumetric flasks.
For home use, the equivalents are measuring cups and spoons.
If you wanted to put a precise volume of a liquid into a jar
you might use a burette (a graduated glass tube with a tap at the
bottom that you can let exactly the right amount through).
Or you could use a pipette (a glass tube with a bulge in the
middle and a line on the neck. You suck liquid up until it reaches
the line and depending on what the size of the pipette is you have
an exact quantity.
A measuring jug or normal scales works millilitres and grams
are the same.
Mathematically, if you know the dimensions of the container of
the liquid you can find it's volume and calculate the volume.
Or you could find the volume indirectly: for example by
measuring the time it takes to fill at a known flow rate, or by
measuring the mass of liquid and using the density.
They use a graduated cylinder.
graduated cylinder
beaker or measuring cylinder.

Here are some steps to factor out the polynomial like this:
Factor out 5 to get:
5(x² + 2x - 8)
Here is how to work out the decomposition of the center
value:
Find two integers such that the product of these integers is -8
and the sum of these two integers is 2.
We know that the factors of 8 are 1 and 8 and 2 and
4.
Good thing that we obtain the pairs of factors. Now, we need to
determine what type of signs we need to assign each factor of 8.
Since the sum of two integers is 2, the only two values that work
are -2 and 4. How? 4 - 2 = 2. That gives the sum of 2. Then, 4 * -2
= -8, which gives the product -8.
So we can rewrite the expression as:
5(x² + 4x - 2x - 8)
Factor by grouping, we have:
5(x(x + 4) - 2(x + 4))
Therefore, by collecting the terms and grouping the binomial (x
+ 4), we obtain:
5(x - 2)(x + 4)

That depends what the level of tax is.
If the tax is 5%, then you would multiply 26.99 by .05 ; this
will give you the amount of the tax imposed. You would then add the
tax plus your original purchase price to equal your total. ($28.34)
If the tax is 9%, you would multiply 26.99 by .09 and so on.
($29.42)

In mathematics, a plane is any flat, two-dimensional
surface.
A planar surface means that the surface of a material is
straight in two dimensions, an example would be a perfectly flat
smooth piece of glass. If an etch or chip is on the glass surface,
or if the glass is heated and curves, then it is no longer a planar
surface.
Semiconductor fabrication requires the wafer to be a planar
surface.

2D and 3D refer to the actual dimensions in a computer's
workspace. 2D is 'flat', using the X & Y (horizontal and
vertical) axis', the image has only two dimensions and if turned to
the side becomes a line. 3D adds the 'Z' dimension. This third
dimension allows for rotation and depth. It's essentially the
difference between a painting and a sculpture.

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