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3 years ago

13

Complete the area model to identify the quadratic expression it represents.

2 answers:

-Dominant- [34]3 years ago

6 0

Define the length and the width of the rectangle
length = 5x + 4
width = 3x + 2

Determine the area
area = length × width
area = (5x + 4) (3x + 2)
area = (5x)(3x) + 2(5x) + 4(3x) + (4)(2)
area = 15x² + 10x + 12x + 8
area = 15x² + 22x + 8

The area of the rectangle is (15x² + 22x + 8) units²

Alex787 [66]3 years ago

3 0

15x^2 + 12x +10x + 8= 0 reduced 15x^2 +22x+ 8 = 0

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Anestetic [448]

Answer:

$sin (-x) cos (-x) csc (-x) =cos(x)$

Step-by-step explanation:

We know by definition that the cosine is an even function, therefore

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We also know that the sin is an odd function, therefore

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By definition:

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Then:

$csc(-x) = \frac{1}{sin(-x)}.$

$csc(-x) = -\frac{1}{sin(x)}.$

Using these trigonometric properties we can simplify the expression

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zepelin [54]

Answer:

4/3

Step-by-step explanation:

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