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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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Two angles are supplementary. The larger angle is 33 degrees more than 6 times the smaller angle. Find the measure of each angle
noname [10]

Sum of two angles that are supplementary = 180°

Let the smaller angle be = x

Let \:  the  \: smaller \:  angle \:  be \:  =  \: x

then \: the \: larger \: angle \:  = 6x + 33

<h3>Their sum :</h3>

x + 6x + 33 = 180

7x + 33 = 180

7x = 180 - 33

7x = 147

x =  \frac{147}{7}

x = 21

Using this let us find the measures of the smaller angle and bigger angle .

smaller \: angle \:  = x = 21°

larger \: angle \:  = 6x + 33 = 6 \times 21 + 33 = 126 + 33 = 159°

∴ The measure of the two angles are = 21° and 159° .

3 0
3 years ago
20-10 write four equivalent expressions
igor_vitrenko [27]
Here's two. I can't think of any more.


20/10
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5 0
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Determine the difference between the monthly payments on a $120,000 home at 6.5% and at 8% for 15 years
slega [8]

Answer:

I believe the answer is 1800

Step-by-step explanation:

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3 years ago
Leah's house has media room with a large flat screen tv. The media room tv has a width of 8 feet and a height of 4.5 feet. The f
neonofarm [45]
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since the ratio of the living room tv's width to height is the same, the ratio would be
x/27 = 8/4.5
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It's the second one.

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