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iragen [17]
2 years ago
7

What is the sum of (–2.1x + 3.7) and (5 + 4.9x)?

Mathematics
1 answer:
vesna_86 [32]2 years ago
4 0

It's easier to work with problems such as –2.1x + 3.7 -5 + 4.9x when we rearrange the like terms vertically:


–2.1x + 3.7 -5 + 4.9x


becomes


–2.1x + 3.7

+4.9x -5

------------------

2.8x - 1.3 (answer)


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A large city in the ancient world was square-shaped. measured in miles, its area numerically exceeded its perimeter by about 132
melisa1 [442]
Area = perimeter + 132.  

Let  each side of the city be x miles long, then:-

x^2 = 4x  + 132
x^2 - 4x - 132 = 0

x  =  [-(-4) +/- sqrt((-4)^2 - 4 * 1 *-132)] / 2

x = 13.66, -9.66   We ignore the negative

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2 years ago
The graph shows the side view of a waterslide. dimensions are in feet.
Zinaida [17]

Two points on slide are (0, 80), (5, 40).

Step-by-step explanation:

The graph shows the side view of a waterslide and its dimensions are in feet.

First to find (0, ___) and then to find (____, 40).

In the first point <em>x</em>-coordinate is 0 and <em>y</em>-coordinate for the corresponding <em>x</em>-coordinate is 80.

In the second point <em>y</em>-coordinate is 40 and the <em>x</em>-coordinate for the corresponding <em>y</em>-coordinate is 5.

So, the two points are (0, 80), (5, 40).

3 0
2 years ago
Read 2 more answers
Stepping from the embrace, she smoothly extracts the broom from my grip. Which type of phrase is the underlined portion of the s
guajiro [1.7K]

Answer:

A). Participle phrase.

Step-by-step explanation:

'Participle phrases' are defined as the phrases that consist of a participle(present or past) followed by modifiers and their object plus any/or complements. These phrases primarily function as adjectives by providing information about a noun or pronoun in the sentence.

In the given sentence, the underlined portion('stepping from the embrace') is a participle phrase as it begins with a participle('present as it ends with 'ing') followed by the modifier prepositional phrase 'from the embrace'(as an adverb). It is <u>functioning as an adjective as it modifies the pronoun 'she' in the sentence</u>. Thus, <u>option A</u> is the correct answer.

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a rectangular lawn has an area of a^3 - 125. use the difference of cubes to find out the dimensions of the rectangle.
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The area of a rectangle is the product of its dimensions

The dimensions of the rectangle are: \mathbf{Length = a -5} and \mathbf{Width = a^2 + 5a + 25}

The area is given as:

\mathbf{Area = a^3 - 125}

Express 125 as 5^3

\mathbf{Area = a^3 - 5^3}

Apply difference of cubes

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The area of a rectangle is:

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So, by comparison:

\mathbf{Length = a -5}

\mathbf{Width = a^2 + 5a + 25}

Read more about areas at:

brainly.com/question/3518080

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