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LekaFEV [45]
3 years ago
11

What’s the answer ?

Mathematics
1 answer:
Leto [7]3 years ago
7 0

The area of the rectangle in terms of length (l) is l^{2}-7l, if the width of the rectangle is 7 feet less than its length.

Step-by-step explanation:

The given is,

             Width of the rectangle is 7 feet less than its length

             Length is l

Step:1

           Formula for area of rectangle,

                      Area, a = lb

           Where,

                   l - Length of the rectangle

                  b - Width of the rectangle

Step:2

          From the given values,

                    w = l - 7                      ( ∵ from given)

          The equation becomes  

                          =  l  × ( l-7 )

                          = l^{2} - 7l

                Area, a =  l^{2} - 7l square feet

Result:

        The area of the rectangle in terms of length (l) is l^{2}-7l, if the width of the rectangle is 7 feet less than its length.

                       

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If the measure of an angle is 78 less than the measure of its compliment, what is the measure of the angle?
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So let X= angle 1
         Y=angle 2
So x+y=90
let x=y-78
so(y-78)+y=90
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2y-78=90
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2y=168
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y=84
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so x=84-78
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