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defon
3 years ago
7

I'LL MARK THE CORRECT ANSWER AS BRAINLIEST !!! which one is true?

Mathematics
1 answer:
sergejj [24]3 years ago
5 0

Answer:

2.7

3

6

Step-by-step explanation:

2.7×3 = 8.1

3x3=9

6×3= 18

18-8.1= 9.9 < 10

18-9= 9 < 10

18-18=0 < 10

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What is the greatest common factor for 2x2<br> , 8x5<br> , 4x7
Nataly_w [17]

Answer:

Step-by-step explanation:

2x² divide all the three terms so G.C.F.=2x²

5 0
3 years ago
( simultaneous equations)
daser333 [38]

Answer:

See method below.

Step-by-step explanation:

m/n + n/3 = 2

2/m + n = 4    

First  eliminate the fractions by multiplying the first equation by 3n:-

3m + n^2 = 6n...........(1)

and the second equation by m:-

2 + mn = 4m..............(2)

Now we solve using substitution:-

From equation  (2):-

4m - mn = 2

m = 2 / (4 - n)

Now substitute for m in equation (1):-

6/ (4 - n) + n^2 = 6n

6 + n^2(4 - n) = 6n(4 - n)

6 + 4n^2 - n^3 = 24n - 6n^2

n^3 - 10n^2 + 24n - 6 = 0

This will not factor so we could solve this using graphical software.

To find the values of the variable m we substitute the found values of n into one of the original equations and solve for m.






6 0
3 years ago
The length of the rectangle is 19 less than 3 times the width. If the width of the rectangle is 9 cm, what would the length of t
Delicious77 [7]

Step-by-step explanation:

Given,

width = 9cm

so a/q length of the rectangle will be 19 - ( 9×3) = 19 - 27 = 8 cm

<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps</u></em><em><u> </u></em><em><u>you </u></em><em><u>dear.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>take </u></em><em><u>care!</u></em>

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3 years ago
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x = 5i   x =-5i

Step-by-step explanation:

x^2+25=0

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Writing as the difference of squares

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where a = x and b = (sqrt(-25)) =±5i

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Using the zero product property

x-5i =0    x+5i =0

x = 5i   x =-5i

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