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Goshia [24]
2 years ago
15

HELPPPP

Mathematics
1 answer:
Harrizon [31]2 years ago
6 0
It is a function, because they do not have a repeating number in the “Y” place (x,Y). If a set of orderd pairs had the y repeating, then it is not a function. The x can repeat, just not the y.
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What is the simplified form of x minus 2 over x squared plus x minus 6divided byx squared plus 5x plus 4 over x plus 4?
tatyana61 [14]

Answer:

\dfrac{1}{x^2+4x+3}

Step-by-step explanation:

You have asked for the simpilfied form of ...

x-\dfrac{2}{x^2}+x-\dfrac{6}{x^2}+5x+\dfrac{4}{x}+4

That would be ...

\dfrac{7x^3+4x^2+4x-4}{x^2}

We suspect that's not what you meant. Parentheses are required for grouping when you write math expressions in text form. They work best using math symbols instead of words. We think you mean

... ((x -2)/(x^2 +x -6))/((x^2 +5x +4)/(x +4))

_____

Maybe you want to simplify ...

\displaystyle\frac{\left(\frac{x-2}{x^2+x-6}\right)}{\left(\frac{x^2+5x+4}{x+4}\right)}=\frac{(x-2)(x+4)}{(x-2)(x+3)(x+4)(x+1)}\\\\=\frac{1}{(x+1)(x+3)}=\frac{1}{x^2+4x+3}

_____

<em>Comment on simplifying rational expressions</em>

Division of fractions works the same whether you're working with numbers or polynomials (or anything else). Dividing by something is the same as multiplying by its inverse (reciprocal).

(a/b)/(c/d) = (a/b)·(d/c)

I learned this as "invert and multiply". I've recently seen it referred to as "copy dot flip", meaning you copy the numerator, use a dot symbol to indicate multipication, then flip the denominator (make its reciprocal) to become what you're multiplying by.

8 0
3 years ago
PLS HELP ME I NEED IT
OLEGan [10]

Step-by-step explanation:

the area = (\frac{1}{2}) (18)(4)\\ = 36ft^{2}

please give me a brainliest answer

8 0
3 years ago
Will mark brainliest if ur correct! Pls and ty
galina1969 [7]

Answer:

138

Step-by-step explanation:

Hexagon total angle = 720

170+ 277 + 135 = 582

720 - 582 = 138

7 0
3 years ago
How do I do this question!
Flauer [41]

Answer:2 x 3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Find 5/6 of -4/15<br><br> 1. -9/21<br> 2. -2/9<br> 3. -2/3<br> 4. 1/21
Genrish500 [490]

Answer:

it should be 1/21

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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