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Oksana_A [137]
4 years ago
11

How do you factor 81m^2-25

Mathematics
1 answer:
balu736 [363]4 years ago
3 0
<span><span>81m2-25</span> </span>Final result :<span> (9m + 5) • (9m - 5)</span>
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Will mark brainly! :)
rewona [7]

Answer:

Y = 0

Step-by-step explanation:

Both functions have

maximum of \frac{2}{3}

minimum of - \frac{2}{3}

midline is then the average of these

(\frac{2}{3} - \frac{2}{3} ) ÷ 2 = 0 ÷ 2 = 0

midline has equation y = 0 ( that is the x- axis )

4 0
2 years ago
Use the linear combination method to solve the system of equations. –2.1x + 4y = 5.3 2.1x – 5.5y = –0.2 What is the solution to
torisob [31]
X = -9, y = -3.4

You can get this by adding through and getting the x's to cancel. Then use the y value to solve for the x. 
3 0
4 years ago
Read 2 more answers
X+2y + z = 4<br> 1. 4y - 3z = 1<br> y + 5z = 6
Feliz [49]

Answer:

The values of x = y = z = 1  

Step-by-step explanation:

Given three linear equation as ,

x + 2y + z = 4               .......a

     4y - 3z = 1               .......b

       y + 5z = 6             ........c

Now solve eq a and b first

   4y - 3z = 1   ×  5

    y + 5z = 6  ×  3

Or, 20y - 15z = 5

      3 y + 15z = 18

so ,(20y - 15) + (3y +15 ) = 5 +18

or,   23 y = 23  

∴           y = 1

Now put this y value in eq c

so , 1 + 5z = 6 ,

Or,       5z = 6-1 =5

∴            z = 1

Again put this y and z value in eq a

so, x + 2(1) + (1) = 4

Or,                x   = 4 -3

∴                   x = 1

Hence from the above solutions , the value of x = y =z = 1        Answer

4 0
3 years ago
Evaluate 2x^2 − 5y / 3x − y when x = 2 and y = -4
kipiarov [429]
It is -7/2 when the variables are substituted
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3 years ago
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Using radicals write an equivalent expression for the expression y1/5
blagie [28]

Answer: y2/10

Step-by-step explanation:

7 0
4 years ago
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