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blondinia [14]
3 years ago
7

How to find the sum of root for this? ASAP pls

Mathematics
1 answer:
jek_recluse [69]3 years ago
6 0
<h2>9</h2>

Step-by-step explanation:

x² - 9x = 36

x² - 9x - 36 = 0

x² + 3x - 12x - 36 = 0

x ( x + 3 ) - 12 ( x + 3 )

( x - 12 ) ( x + 3 )

x = 12, -3

sum = 12 + (-3)

= 12 - 3

= 9

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Michael and his wife are each starting a saving plan. Michael will initially set aside $75 and then add $50.85 every week to the
lana [24]

Answer:

T = 75 + 116.9*N

Step-by-step explanation:

We have that the equation for Michael's savings is:

A = 75 + 50.85*N, where N is the number of weeks

And we have that the equation for his wife's savings is:

B = 65.95*N.

So, to find the total amount saved using both plans combined (T), we have to sum A and B:

T = A + B = 75 + 50.85*N + 65.95*N = 75 + 116.9*N

So the equation that relates T to N is:

T = 75 + 116.9*N

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Margarita [4]

Answer:

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Step-by-step explanation:

6 0
3 years ago
What is 15.37×5 show work
just olya [345]
This should be quite easy to explain. So the first thing you want to do is multiply them. This isn't to hard if you know your times tables. Don't worry about the decimal till the end.

 15.37
×      5
---------
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15.37 times 5 is 76.85

Now on to the decimal. All you need to do is move it two times to the left. You see how it's in between the 5 and 3? The same goes for your answer. So it is 76.85 

I hope this helped!! ^^ I can make this a little more easier to explain if you want me to just in case, ok? 
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