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mina [271]
2 years ago
10

A rectangular field is 120 yards long and 85 yards wide.

Mathematics
2 answers:
stepladder [879]2 years ago
8 0

Answer:

Ans is in attachment

hope it helps :)

plz mark as brainliest

kakasveta [241]2 years ago
3 0

Step-by-step explanation:

Given parameters:

Length = 120yards

Width  = 85yards

Unknown:

Length and width of another rectangular field with the same perimeter but a larger area = ?

Solution:

The key to solving this problem is to known that for any given length and width, the area of square is the greatest.

  Length = 120yards     New length  = 100yards

 Width  = 85yards         New width = 105yards

Now,

 Area of the new dimension  = 105 x 100  = 10500yd²

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Answer:

See Explanation

Step-by-step explanation:

Given

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Required

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The mean is calculated as:

\bar x = \frac{\sum x}{n}

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The answer is:  [C]:  " f(c) = \frac{9}{5} c  + 32 " .
________________________________________________________

Explanation:

________________________________________________________
Given the original function:  

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</span>→  <span>Write the original function as:  " y = </span>(5/9) (x − 32) " ; 

Now, change the "y" to an "x" ; and the "x" to a "y"; and rewrite; as follows:
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    x = (5/9) (y − 32) ; 

Now, rewrite THIS equation; by solving for "y" ; in terms of "x" ; 
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→ That is, solve this equation for "y" ; with "c" as an "isolated variable" on the
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→  x  =  " (  \frac{5}{9}  ) * (y − 32) " ;

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Note the "distributive property" of multiplication:
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a(b + c) = ab + ac ;  <u><em>AND</em></u>:

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As such:
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" (\frac{5}{9}) * (y − 32) " ; 

=  [ (\frac{5}{9}) * y ]   −  [ (\frac{5}{9}) * (32) ] ; 


=  [ (\frac{5}{9}) y ]  − [ (\frac{5}{9}) * (\frac{32}{1})" ;

=  [ (\frac{5}{9}) y ]  − [ (\frac{(5*32)}{(9*1)} ] ; 

=  [ (\frac{5}{9}) y ]  −  [ (\frac{(160)}{(9)} ] ; 

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Now, add "160" to each side of the equation; as follows:
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 The answer is:  " f(c) = \frac{9}{5} c  + 32 " ;
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 →  which is:  

→  Answer choice:  [C]:  " f(c) = \frac{9}{5} c  + 32 " .
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