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Sergeu [11.5K]
3 years ago
7

Help with 8, 9 and 10 plz :’)

Mathematics
2 answers:
m_a_m_a [10]3 years ago
7 0

8. [B]

9. [A]

10. [B] (Just search up each one and look which looks closer)

Ann [662]3 years ago
6 0
The first is b, the second is a and the third is b
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What expression is equivalent to the area of metal sheet required to make this square-shaped traffic sign?
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Answer: \text{Area of the square shaped traffic sign }=16x^2+9+24x

Step-by-step explanation:

Given: The side of the square shaped traffic sign = 4x+3

We know that the area of square is given by:-

Area= side^2

Therefore, the area of the side of the square shaped field is given by:-

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We know that , (a+b)^2=a^2+b^2+2ab

Therefore,

(4x+3)^2=(4x)^2+(3)^2+2(4x)(3)\\=16x^2+9+24x

Hence, \text{Area of the square shaped traffic sign }=16x^2+9+24x

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