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mr_godi [17]
3 years ago
6

Can you help me with a rational expressions & eplquations please

Mathematics
1 answer:
nasty-shy [4]3 years ago
4 0
Yes I can help you with rational expressions and eplquations!
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Do you like forgs???
just olya [345]

Answer:

there ok

Step-by-step explanation:

8 0
2 years ago
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Factorise the equation 9x^2 - 4
Wittaler [7]

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

            = (3x + 2 )(3x - 2)

5 0
3 years ago
Can someone help me with this it’s for science and it’s due tomorrow
8_murik_8 [283]

Answer:

Hoping someone else can answer with more confidence, but here's what I have:

on the left hand side:

upper is partial/penumbral lunar eclipse

lower is total solar eclipse

on the right hand side:

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6 0
2 years ago
solve this system of linear equations. Separate the X- and Y- values with a comma. -9x+2y=-16 19x+3y=41​
Serjik [45]

Answer:

(2, 1)

Step-by-step explanation:

The best way to do this to avoid tedious fractions is to use the addition method (sometimes called the elimination method).  We will work to eliminate one of the variables.  Since the y values are smaller, let's work to get rid of those.  That means we have to have a positive and a negative of the same number so they cancel each other out.  We have a 2y and a 3y.  The LCM of those numbers is 6, so we will multiply the first equation by a 3 and the second one by a 2.  BUT they have to cancel out, so one of those multipliers will have to be negative.  I made the 2 negative.  Multiplying in the 3 and the -2:

3(-9x + 2y = -16)--> -27x + 6y = -48

-2(19x + 3y = 41)--> -38x - 6y = -82

Now you can see that the 6y and the -6y cancel each other out, leaving us to do the addition of what's left:

-65x = -130 so

x = 2

Now we will go back to either one of the original equations and sub in a 2 for x to solve for y:

19(2) + 3y = 41 so

38 + 3y = 41 and

3y = 3.  Therefore,

y = 1

The solution set then is (2, 1)

6 0
2 years ago
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A sociologist recorded the number of contacts entered in a cell phone and the number of texts sent in a week for 20 cell phone u
barxatty [35]

Answer:

A

Step-by-step explanation:

B1 represents the slope of the population regression line so A is the answer

6 0
3 years ago
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