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diamong [38]
3 years ago
11

What is the value of x?​

Mathematics
2 answers:
olganol [36]3 years ago
8 0
This shape is 540 degrees

100+100+112+89+x=540
X=139

Hope this helps !
Nataly_w [17]3 years ago
5 0

Answer:

139

Step-by-step explanation:

a pentagon has degrees that add up to 540 so considering youre given 401 degrees the remaining angle has to be 139

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Solve the following system of equations algebraically:<br> 4x - 5y = 18<br> 3x – 2y = 10
fiasKO [112]

Answer:

D

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

8 0
3 years ago
For the function f(x)=8(x+10), find f^-1(x)
NeTakaya
In other words, find the inverse of the given function f(x).

1.  Replace f(x) with "y."     y = 8(x+10)
2.  Interchange x and y:      x = 8(y+10)
3.  Solve this for y:             y+10 = x/8, or y = x/8 - 10

                                   -1
4.  Replace "y" with "f     (x) "       

          -1           x-80
         f   (x) = ----------     (Answer)
                            8 
6 0
3 years ago
Simplify the expression by combining like terms 2x+8-x+10
svp [43]

Answer:

x+18

Step-by-step explanation:

Let's simplify step-by-step.

2x+8−x+10

=2x+8+−x+10

Combine Like Terms:

=2x+8+−x+10

=(2x+−x)+(8+10)

=x + 18

8 0
2 years ago
What is the equation to solve for p
allochka39001 [22]
I don't what that says
8 0
3 years ago
If -13x-71=201 what is x
jenyasd209 [6]

Answer:

272/-13 or −20.923

Step-by-step explanation:

To solve this equation you need to isolate the variable.

First, add 71 to both sides

-13x-71+71=201+71

-13x=272

Then, divide both sides by -13

-13x/-13=272/-13

So, x=272/-13 or −20.923

6 0
3 years ago
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