The scatter plot shows temperatures, taken at

Ответ:

thebrain1345

16.10.2021

$a = 16x^2 + 24x + 9$

we know it's a perfect square so the first term has to be 4x and the second 3. let's check:

$a = (4x+3)^2 = 16 x^2 + 24 x + 9 \quad\checkmark$

so the length of each side is

$l = 4x+3$

part b

that's the difference of two squares:

$4x^2-49y^2 = (2x - 7y)(2x + 7y)$

at this point we're supposed to say the rectangle's dimensions are

2x-7y by 2x+7y

but that's horse hockey. the rectangle dimensions are l, any positive number, and

$w= \dfrac{4x^2- 49y^2}{l}$

but i'm almost certain they're expecting the wrong answer:

2x-7y by 2x+7y

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