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Nataly [62]
3 years ago
15

How do you work out the value of x?

Mathematics
2 answers:
denis23 [38]3 years ago
6 0

Answer: 45

Step-by-step explanation:

The total degrees in a circle is 360.

The perpendicular angle that you see is 90 degrees, added to angles of x and 3x, you get the total degrees.

so 90 + x + 3x = 90 + 4x = total

90 + 4x = 360

4x = 180

x = 45 degrees

densk [106]3 years ago
5 0

Answer:

360=90 degrees+x+3x

360-90=270 degrees

270÷4x

67.5 degrees

The answer is x=67.5 degrees

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IgorLugansk [536]

Answer:

It would be 10*3

Step-by-step explanation:

If we follow the rule of BIDMAS or BODMAS, they both have Brackets to be done first.

By meaning we must do 4+6 as it is in the bracket. Then we multiply our answer by 3.

7 0
3 years ago
Find the perimeter of quadrilateral ABCD with vertices A=(1,1) B=(4,4) C=(7,1) D=(4,-2). Explain your answer.​
Vanyuwa [196]

we have the coordinates of ABCD

there are 2 ways of doing this one is you find the distance of ab, bc, cd and da and then add the answers together. there is another way but i dont remember it properly so i am just gonna do it this way

distance between 2 point = \sqrt{(x_B-x_A)^2+(y_B-y_A)^2}

AB

d = \sqrt {(4 - 1)^2 + (4 - 1)^2}

d = \sqrt {(3)^2 + (3)^2}

d = \sqrt {9 + 9}

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now repeat the same with all

BC= 4.24

CD= 4.24

DA= 4.24

so its a square with all the same sides so perimeter is 4 x 4.24

perimeter is 16.96

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3 0
2 years ago
Two streets intersect at a 30 degree angle. At the intersection, there are four crosswalks formed that are the same length. what
ELEN [110]

Answer:

  rhombus

Step-by-step explanation:

A quadrilateral with equal-length sides is a <em>rhombus</em>.

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A square is a special case of a rhombus.

3 0
3 years ago
If y-8=5x, what is x when the value of y= -87
anastassius [24]

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Step-by-step explanation:

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PilotLPTM [1.2K]

Answer:

x = 6

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The line of reflection is x = 6.

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