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2 years ago

Why is it important to describe the variable in an expression?

Mathematics

2 answers:

Korvikt [17]2 years ago

5 0

Answer: They show numerical value. You have to make them clear.

Step-by-step explanation:

Snowcat [4.5K]2 years ago

5 0

Answer:

you define it, and it lets you know how to properly write the equation. ... If you want to solve for the unknowns using mathematical equations it is necessary to define the unknown variables i.e. what they represent in the real world so that the known relationships can be expressed in equation form

Step-by-step explanation:

its basically a value that can hold and amount depending on the value you give it

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A cylinder has a volume of 360 in^3. If the height and radius are multiplied by 2.5, what will the resulting volume be?

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$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=2.5r\\
h=2.5h
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\\\\\\
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2 years ago

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2 years ago

A circular garden with a radius of 8 feet is surrounded by a circular path with a width of 3 feet.

Vladimir [108]

Answer:

178.98 ft2

Step-by-step explanation:

we know that

The area of the circular path alone is equal to subtract the area of the circular garden from the area of the complete circle (circular garden plus circular path)

$A=\pi (r_2^2-r_1^2)$

where

$r_1=8\ ft$ ---> radius of circular garden

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substitute

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3 years ago

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