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Paraphin [41]
3 years ago
6

The width of a rectangle is 5 n minus 1.5 feet and the length is 1.5 n plus 9 feet. Find the perimeter of the rectangle.

Mathematics
1 answer:
andre [41]3 years ago
5 0

Answer:

Perimeter= 13n+15

Step-by-step explanation:

We know that

Length(l) = 1.5n + 9 ft

Width(w) = 5n - 1.5 ft

The formula for the perimeter(P) of a rectangle is:

P=2l+2b \\or \\P=2(l+b)

So by substituting l and w we get :

P= 2[(1.5n+9)+(5n-1.5)]

P= 2[(1.5n+9)+(5n-1.5)]

P= 2[1.5n+5n+9-1.5]

P= 2[6.5n+7.5]

P= 13n+15

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The Cinema Center consists of four theaters: Cinemas I, II, III, and IV. The admission price for one feature at the Center is $5
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a) Matrix B = \left[\begin{array}{c}5\\7\\9\end{array}\right]

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Step-by-step explanation:

Matrix A = \left[\begin{array}{ccc}225&110&70\\95&160&225\\280&65&110\\0&240&225\end{array}\right]

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