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Nata [24]
3 years ago
8

Add. 3x2 - 5x+1 2x2 +9x-6 +

Mathematics
2 answers:
sashaice [31]3 years ago
6 0

Answer:

5x^2+4x-5

Step-by-step explanation:

3x^2-5x+1 \ and \ 2x^2 + 9x -6

Add both the polynomials

To add both the polynomials we combine like terms

3x^2-5x+1 +2x^2 + 9x -6

3x^2 and 2x^2 are like terms . it becomes 5x^2

-5x and 9x are like terms . it becomes 4x

3x^2-5x+1 +2x^2 + 9x -6

[tex]5x^2+4x-5/tex]

Marizza181 [45]3 years ago
5 0

Answer:

The sum of the two expressions is 5x^2 + 4x - 5

Step-by-step explanation:

Rewrite

3x2 - 5x+1

2x2 +9x-6

as

3x^2 - 5x+1

2x^2 +9x-6                          " ^ " indicates exponentiation

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

5x^2 + 4x - 5

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A small plane is flying a banner in the shape of a rectangle. The area of the banner is 144 square feet . The width of the banne
Margarita [4]

Answer:

The answer to your question is width = 6 ft; length = 24 ft

Step-by-step explanation:

Data

Area = 144 ft²

width = w

length = l

The width is 1/4 of the length

Formula

Area = width x length = w x l

Length = 4 width     l = 4w

Process

1.- Substitute length in the first equation

                       Area = w(4w)

Simplify

                       Area = 4w²

2.- Solve for w

                      w = \sqrt{\frac{Area}{4}}

Substitution

                      w = \sqrt{\frac{144}{4}}

Simplification

                      w = \sqrt{36}

Result

                      w = 6 ft

3.- Find l

                       l = 4(6)

                       l = 24 ft

8 0
4 years ago
A dvd that originaly cost 30 dollars is on sale for 10 percent off. find the amount of the discount.
Dennis_Churaev [7]
The discounted price would be $27
8 0
3 years ago
8x - 2y if x=3, y=5<br> (1) 24<br> (2) 15<br> (3) 14 <br> (4) 10
ladessa [460]

Answer: (4) 14

Step-by-step explanation:

8x - 2y if x is 3 and y is 5

8x = 24

2y = 10

24 - 10 = 14

So 8x - 2y is 14.

5 0
3 years ago
Read 2 more answers
What is x to the power of 3 divided by x to the power of -5
Veseljchak [2.6K]
X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8

Hope it helps!
4 0
3 years ago
3 56/34 - 5 1/2 simplify
MaRussiya [10]

Answer:

29/34

hope this helps

Step-by-step explanation:

4 0
3 years ago
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