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tester [92]
3 years ago
6

How do I solve number 15?! Plz help!!!!!

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0

first get all variables on the same side, then use elimination to solve.

x = -3

y = -11

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What is an equation of the line that passes through the points (-4,-2)<br> and (8, 1)?
stiv31 [10]

Answer:

y=1/4x-1

Step-by-step explanation:

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2 years ago
Which is true about the degree of the sum and difference of the polynomials 3x5y – 2x3y4 – 7xy3 and –8x5y + 2x3y4 + xy3?
Alekssandra [29.7K]
<span>First we have to find the sum and the difference of those polynomials- The sum is: ( 3 x^5y - 2 x^3y^4 - 7 xy^3 ) + ( - 8 x^5y + 2 x^3y^4 + xy^3 ) = 3 x^5 - 2 x^3y^4 - 7xy^3 - 8 x^5y + 2 x^3y^4 + xy^3 = - 5 x^5y - 6 xy^3. And the difference: ( 3 x^5y - 2 x^3y^4 - 7 xy^3 ) - ( - 8 x^5y + 2 x^3y^4 + xy^3 ) = 3 x^5y - 2 x^3y^4 - 7 xy^3 + 8 xy^5 - 2 x^3y^4 - xy^3 = 11 xy^5 - 4 x^3y^4 - 8xy^3. The highest exponent in both polynomials is 5. Answer: The degree of the polynomials is 5.</span>
7 0
3 years ago
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Given f(x)=1/x+5 and g(x)=x-2
vladimir1956 [14]

For this case we have the following functions:

f (x) = \frac {1} {x + 5}\\g (x) = x-2

We must find f (g (x)). So:

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Finally we have to:

f (g (x)) = \frac {1} {x + 3}

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Answer:

Option B

3 0
3 years ago
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5 0
3 years ago
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I don't know what the answer is to divide 180 in a ratio of 4:5:9
Karolina [17]
Hello there,

First you need to add together the numbers.
4+5+9 = 18
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Multiply each number by 10.
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Hope This Helps You!
Good Luck Studying :)
4 0
3 years ago
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