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Vinil7 [7]
3 years ago
6

The rectangle is 22cm along the base

Mathematics
1 answer:
Nikolay [14]3 years ago
5 0
X / 22 = 4 / 3 ;
x = ( 22 * 3 ) / 4 ;
x = 66 / 4 ;
x = 16,5 ;
P = 2*22 + 2*16,5 ;
P = 44 + 33 ;
P = 77 .
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Answer:

\frac{4a-2}{2a+1}

Step-by-step explanation:

Factorise the numerator and denominator

8a² - 2 ← factor out 2 from each term

= 2(4a² - 1) ← 4a² - 1 is a difference of squares

= 2(2a - 1)(2a + 1)

4a² + 4a + 1 ← is a perfect square

= (2a + 1)²

Thus

\frac{8a^2-2}{4a^2+4a+1}

= \frac{2(2a-1)(2a+1)}{(2a+1)(2a+1)} ← cancel (2a + 1) on numerator/ denominator

= \frac{2(2a-1)}{2a+1}

= \frac{4a-2}{2a+1}

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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