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slava [35]
3 years ago
7

What is the sum of the polynomials

Mathematics
2 answers:
marysya [2.9K]3 years ago
6 0
I think the answer is -4x^-11x+13
aksik [14]3 years ago
5 0
The first step for solving this expression is to remove the first set of parenthesis.
-x² <span>+ 9 + (-3x</span>² <span>- 11x + 4)
Now,, remember that when there is a "+"sign in front of the parenthesis,, then the parenthesis in the expression remains the same. This means that all you need to do for the second side of the expression is remove the parenthesis.
</span>-x² + 9 + -3x² - 11x + 4
<span>Collect the like terms that have an exponent of two.
-4x</span>² + 9 - 11x + 4
Add the regular numbers together.
-4x² + 13 - 11x
Lastly,, use the commutative property to reorder the terms and get your final answer.
-4x² - 11x + 13
Since we cannot simplify this expression down any further,, our final answer is going to be -4x² - 11x + 13 or option B.
Let me know if you have any further questions.
:)
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Greatest common factor is 1

Note

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2 years ago
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You have $32 to spend at the music store. Each cassette tape costs $5 and each cd costs $9. Write a linea inequality that repres
forsale [732]

Answer:

5x+9y≤32

Step-by-step explanation:

Let x be the number of cassette tapes you purchase.

Let y be the number of CDs you purchase.

The problem is you only have $32 to spend.

Different combinations of tapes and CDs are possible. We want an equation showing this relationship.

One cassette tape costs $5. The cost for any number of cassette tapes is $5 times the number  

purchased; that's 5 times x, or 5x.

To find the cost of CDs purchased, we multiply $9 times the number of CDs, $9 times y or 9y.  

The cost of the total purchase is  

[the cost of the cassettes] + [the cost of the CDs] or

5x + 9y


Hope this helps!!

8 0
3 years ago
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Jelly beans cost $2.00 for 4 packages. There were 25 students. How much money will be needed so that each
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A plant nursery is having a sale. Potted begonias are marked down 27%, and tomato seedlings are marked down 35%. If you pay $6.
olchik [2.2K]

Based on the markdowns and the number of each of the plants purchased, the amount saved is <u>$9.06</u>

Potted Begonias cost $6.57 when discounted by 27%. Their cost must be:

<em>Discounted cost = Original cost x (1 - Discount)</em>

6.57 = Original x (1 - 27%)

Original = 6.57 / 0.73

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The savings here are therefore:

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The original cost of the Tomato seedlings is:

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Savings would be:

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= $4.20

Total savings are therefore:

= 4.86 + 4.20

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In conclusion, $9.06 was saved.

<em>Find out more on this at brainly.com/question/25748983. </em>

8 0
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