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3 years ago

9

The algebraic expression 6x2 + 9 x + 3 represents the area of a rectangle. What is the area of the rectangle when x = 3m?

1 answer:

ioda3 years ago

8 0

The area of the rectangle calculate using the algebraic model given is 84 m²

<u>Given the algebraic representation </u><u>for</u><u> </u><u>the area of a rectangle</u> :

Area of rectangle = 6x² + 9x + 3

<u>The Area of the rectangle when x = 3 can be calculated thus</u> :

Substitute the value x = 3 into the equation :

x = 3

Area of rectangle = 6(3)² + 9(3) + 3

Area of rectangle = 54 + 27 + 3 = 84 m²

Therefore, the area of the rectangle is 84 m²

Learn more :brainly.com/question/18112348

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Consider the following higher-order differential equation. d3u dt3 + d2u dt2 − 2u = 0 Find all the roots of the auxiliary equati

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If three roots are real and distinct.

Then $y=C_1e^{\lambda_1t}+C_2e^{\lambda_2t}+C_3e^{\lambda_3x}$

If two roots imaginary and one root real , $\lambda_1= a+ib \ and \ \lambda_2= a-ib$

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$\Rightarrow m= 1,\frac{-2\pm\sqrt{2^2-4.2.1} }{2.1}$

$\Rightarrow m= 1,\frac{-2\pm\sqrt{-4} }{2.1}$

$\Rightarrow m= 1,-1\pm i$

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$\Rightarrow y=C_1e^{t}+e^{-t}[C_2sin \ t+C_3 cos \ t]$

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