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4 years ago

An Aluminum bar is 2 m long at a temperature of 20 degrees Celsius. What will it be at 100 degrees Celsius?

Mathematics

2 answers:

ddd [48]4 years ago

7 0

Answer:

Step-by-step explanation:

20*5=100

Inga [223]4 years ago

3 0

Answer:

10 meters

Step-by-step explanation:

Let at 100 degrees Celsius, the aluminum bar is x m long.

We have been given that aluminum bar is 2 m long at a temperature of 20 degrees Celsius.

Thus, we have the equation

$\frac{2}{20}=\frac{x}{100}$

Solve the equation for x

$x=\frac{2\times100}{20}\\\\x=10$

Thus, at 100 degree Celsius, the aluminium bar is 10 meters long.

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$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:Domain = [-9, -1]$

$\qquad \tt \rightarrow \:Range = [-1 , 3]$

____________________________________

$\large \tt Solution \: :$

Domain = All possible values of x for which f(x) is defined

[ generally the extension of function in x - direction ]

Range = All possible values of f(x)

[ generally the extension of function in y - direction ]

$\large\textsf{For the given graph : }$

$\qquad \tt \rightarrow \: domain = [ - 9, -1]$

$\qquad \tt \rightarrow \: range= [ -1,3]$

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