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Eduardwww [97]
3 years ago
6

Add polynomials: (3 – 4x + 8x2) + (–6 + 2x – 5x2)

Mathematics
2 answers:
Ierofanga [76]3 years ago
8 0

Answer:

The sum of the polynomials in the equation is 3x² - 2x - 3

Step-by-step explanation:

(3 - 4x + 8x²) + (-6 + 2x - 5x²)

Distribute the positive sign to (-6 + 2x - 5x²). So all of these terms will stay the same and maintain their original signs.

3 - 4x + 8x² - 6 + 2x - 5x²

Combine like terms.

- 3 - 2x + 3x²

Now put the equation in standard form. This means that the exponential numbers will be ordered in descending order.

3x² - 2x - 3

Anestetic [448]3 years ago
5 0

Answer:

3x^2 -2x -3

Step-by-step explanation:

Combine like terms

3-4x+8x^2-6+2x-5x^2

Put the numbers that are squared in the front

8x^2 -5x^2 =3x^2

Put the numbers with x only next

-4x + 2x= -2x

Then the normal numbers

3-6=-3

Put them together in simplified form of the equation

Thus your answer is 3x^2 - 2x -3

Hope this helps please mark brainliest!

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mamaluj [8]

Answer:

1. f(x)=2  2. g(x)7 14

Step-by-step explanation:

1. if you graph the points for f(x) then you get 2.

2. if you graph the points for g(x) then you get 7.

and there is your answer! hope this helps!

3 0
2 years ago
The value of a car is $18,000 and depreciating at a rate of 12% per year. Use
marysya [2.9K]

Answer:

21600

Step-by-step explanation:

18,000x.12x10=21600

4 0
3 years ago
Is 1/2 greater than 4/5
Law Incorporation [45]
For this question you should know:
1/2 = 5/10 
and 
4/5 = 8/10 
so you can see 8/10 is greater than 5/10 so the answer is no 
4/5 is greater than 1/2 :)))
i hope this is helpful 
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4 0
3 years ago
Kayla's father throws Kayla a graduation party that costs $775. He pays the DJ $250, $75 for the cake, and $5 per party guest fo
Charra [1.4K]

Answer:

90 people

Step-by-step explanation:

Total: $775

DJ: $250

Cake: $75

Unknown party guests each getting $5

Let the unknown be x

We can form an equation; <em>DJ + Cake + x number of party guests = $775</em>

<em>250 + 75 + 5x = 775</em>

<em>325 + 5x = 775</em>

Subtract 325 from <u>both sides of the equals sign</u>.

<em>5x = 450</em>

Make <em>x</em> the subject and divide both sides by 5

<em>x = 90</em>

There were 90 party guests.

7 0
4 years ago
A trap for insects is in the shape of triangular prism. The area of the base is 3.5 inches and the height of the prism is 5 inch
Alecsey [184]
The volume of triangular prism V = A * h.
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6 0
3 years ago
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