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Alex
2 years ago
13

X°+(x+30)=180°I need answer​

Mathematics
1 answer:
djyliett [7]2 years ago
7 0

Answer:

210 + -1x

Step-by-step explanation:

Simplifying

X + (x + -30) = 180

Reorder the terms:

X + (-30 + x) = 180

Remove parenthesis around (-30 + x)

X + -30 + x = 180

Reorder the terms:

-30 + X + x = 180

Solving

-30 + X + x = 180

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '30' to each side of the equation.

-30 + X + 30 + x = 180 + 30

Reorder the terms:

-30 + 30 + X + x = 180 + 30

Combine like terms: -30 + 30 = 0

0 + X + x = 180 + 30

X + x = 180 + 30

Combine like terms: 180 + 30 = 210

X + x = 210

Add '-1x' to each side of the equation.

X + x + -1x = 210 + -1x

Combine like terms: x + -1x = 0

X + 0 = 210 + -1x

X = 210 + -1x

Simplifying

X = 210 + -1x

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A number that is greater than 0 is called a
Reptile [31]

Answer:

A number that is greater than 0 is called a positive number

Step-by-step explanation:

Any number greater than zero is called a positive number.

On the number line, all the numbers greater than zero are to the right of zero.

In the on xy coordinate plane, a number greater than zero is located above the x-axis.

Hence the word which best completes the given statement is positive number

8 0
3 years ago
If 3x + 2y = 8 and x is twice the value of y, what is the value of x<br> -y?
Galina-37 [17]

Answer:

1

Step-by-step explanation:

3x+2y=8          

x=2y

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3 0
2 years ago
Read 2 more answers
Which equation is equivalent to the given equation?
emmainna [20.7K]

Answer:

  D.  (x – 3)^2 = 17

Step-by-step explanation:

We assume you want an equivalent to x^2 -6x = 8.

We can complete the square by adding the square of half the x-coefficient to both sides of the equation.

  x^2 -6x +(-6/2)^2 = 8 +(-6/2)^2

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3 0
2 years ago
What is the area of the shaded region?
kolezko [41]

Answer:

110 cm^2

Step-by-step explanation:

The first thing that you need to do is find the area of triangle AFE. The area of a triangle is always base*height/2. So in this case, that would be 10*6 divided by 2, which is 30 cm. Next, you will need to know the area of triangle ECB. Using that same formula, you will get 8*10/2, which is 40 cm. Finally, you will need to find the area of the whole rectangle. The area of a rectangle is always the length times the width. In this case, you would have 10*18, which is 180 cm. To get your final answer, you need to subtract the areas of the unshaded area from the whole area. That would be 180-(30+40), which is 110 cm. I hope this helped!

6 0
2 years ago
What multiplies to -26 and adds to 5
Kryger [21]
The two numbers are (5+ √(129))/2 and (5-√(129))/2.

(5+ √(129))/2+ (5-√(129))/2= 5
(5+ √(129))/2* (5-√(129))/2= -26

Hope this helps~
6 0
3 years ago
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