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oee [108]
2 years ago
14

What is the value of x? Enter your answer in the box. °

Mathematics
2 answers:
Afina-wow [57]2 years ago
4 0
Answer = 127 degrees

Firstly, find out how many degrees in total are in the polygon.

(n stands for number of sides)
(n - 2) x 180
(6 - 2) x 180 = 720

Afterwards, subtract that amount by all the given angles.

720 - 112 - 133 - 128 - 100 - 120 = 127 degrees

Hope it helps :D
Jet001 [13]2 years ago
4 0

the sum of a pentagon is 720.

minus all of the known angles from 720.

x = 720 - 112- 120 - 133 - 128 - 100

x = 127

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(y-2)^2=-16(x-3) what is it
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(y-2)² = -16(x-3)

y²-4y+4 = -16x+48

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5 0
2 years ago
Solve by addition method <br>3x+y=8 <br>2x-y=7
Vinil7 [7]

Answer:

(3,-1)

Step-by-step explanation:

So we have the system of equations:

3x+y=8\\2x-y=7

As directed, add straight down. The y-variable will cancel:

5x=15

Now, divide both sides by 5. The left cancels:

x=3

So x is 3.

Now, substitute 3 for x in either of the equations:

3x+y=8

Substitute 3 for x:

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Multiply:

9+y=8

Subtract 9 from both sides:

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So, our answer is: x=3, y=-1 or (3,-1).

And we are done :)

7 0
3 years ago
Select the three ratios that are equivalent to<br> 2 adults/5 children
IceJOKER [234]
2:5
4:10
8:20
16:40
Hope that helps:)
3 0
2 years ago
Read 2 more answers
The number of adults who attend a county fair (measured in hundreds of people) is represented by the function a(d)=−0.3d2+4d+9 ,
Lesechka [4]

Given is the function for number of adults who visit fair at day 'd' after its opening, a(d) = −0.3d² + 4d + 9.

Given is the function for number of children who visit fair at day 'd' after its opening, c(d) = −0.2d² + 5d + 11.  

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f(d) = c(d) - a(d).

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⇒ f(d) = -0.2d² + 0.3d² + 5d - 4d + 11 - 9

⇒ f(d) = 0.1d² + d + 2

6 0
2 years ago
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Zepler [3.9K]

Answer:

2/10   = 1/5.

Step-by-step explanation:

There are 2 reds in 10 chALKS.

4 0
2 years ago
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