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Alla [95]
3 years ago
7

Pleas help me it hard for me

Mathematics
1 answer:
Anon25 [30]3 years ago
3 0

Answer:

Step-by-step explanation:

The area of the rectangle is 3x(2x+5)=6x^2 + 15x

The are of the triangle is 2(x-3)/2 = x-3

Now subtract the triangle are from the rectangles area

6x^2 + 15x - x + 3 = 6x^2 + 14x + 3

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What is the length of the diagonal of a monitor that is 5 inches wide and 12 inches high
DerKrebs [107]

Answer:

so draw out a graph

Step-by-step explanation:

12-                                      

11-

10-

9-

8-

7-

6-

5-

4-

3-

2-

1-

      [          [        [        [        [

      1        2        3       4       5

5 0
3 years ago
Read 2 more answers
Someone please help
OLEGan [10]

Answer:

e= -2

Step-by-step explanation:

1) distribute so you get 6+0.75e=2-1.25e

2) move the variable to one side so you get 6+2e=2

3) subtract the 6: 2e=-4

4) divide by 2: e= -2

4 0
3 years ago
Math: <br> -x + 6 is greater than or equal to 10
Alla [95]

Answer:

It is actually less than 10.

Step-by-step explanation:

7 0
3 years ago
(2a 2 + a + 3) (a - 1) Please help
ArbitrLikvidat [17]
Hey there!

You can use distributive property, as I mentioned in your previous questions.

multiply...
2a² × a = 2a³
2a² × -1 = -2a²
a × a = a²
a × -1 = -a
3 × a = 3a
3 × -1 = -3

add all those terms..
2a³ - 2a² + a² - a + 3a - 3
add the like terms

2a³ - a² + 2a - 3

Hope this helped :)
4 0
3 years ago
Read 2 more answers
© y= 2x + 6<br> -3x - 5y= 22<br> Please help with substitution
umka21 [38]

Answer:

[2]    x = -5y - 4

// Plug this in for variable  x  in equation [1]

  [1]    2•(-5y-4) - 5y = 22

  [1]     - 15y = 30

// Solve equation [1] for the variable  y

  [1]    15y = - 30

  [1]    y = - 2

// By now we know this much :

   x = -5y-4

   y = -2

// Use the  y  value to solve for  x

   x = -5(-2)-4 = 6

Solution :

{x,y} = {6,-2}

  Processing ends successfully  

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Terms and Topics

Linear Equations with Two Unknowns

Solving Linear Equations by Substitution

Related Links

Algebra - Linear Systems with Two Variables

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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