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Liono4ka [1.6K]
4 years ago
7

What is the value of x?

Mathematics
2 answers:
Lostsunrise [7]4 years ago
7 0

Answer:

x = 20

Step-by-step explanation:

The angles are vertical angles which means they are equal

x+40 = 3x

Subtract x from each side

x+40-x = 3x-x

40 = 2x

Divide by 2

40/2 = 2x/2

20 =x

vazorg [7]4 years ago
4 0

Answer:

A

Step-by-step explanation:

If you input 20 for x & add it up you will get 60 degrees for both angles.

This is correct because vertical angles are always congruent

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Solve for x: −3|2x 6| = −12 x = 1 and x = 5 x = −1 and x = −5 x = −9 and x = 3 no solution
Kruka [31]
-3|2x + 6| = -12
|2x + 6| = -12/-3 = 4
2x + 6 = 4 and 2x + 6 = -4
2x = 4 - 6 and 2x = -4 - 6
2x = -2 and 2x = -10
x = -2/2 and x = -10/2
x = -1 and x = -5
5 0
4 years ago
In triangle ABC, the side lengths are AB = 13, AC = 21, and BC = x. Write a compound inequality that represents the range of pos
Ipatiy [6.2K]

Answer:

7 < x < 34

Step-by-step explanation:

The answer must be greater than 7, else the two sides are less than or equal to the third. That triangle is impossible. The answer must also be less than 34, because then the two other sides would equal the third, making an impossible triangle.

4 0
3 years ago
Find the distance between each pair of points <br>L(-7,0) ,Y(5,9)​
Sedbober [7]

Answer:  The distance is 15

Step-by-step explanation:

To find the distance between L and Y find the difference in the x and y coordinates then square them and add them to find their square root.

-7-5= -12

0-9 = -9

12^2 + 9^2 = d^2   where d is the distance

144 + 81 = d^2

225 = d^2

d= \sqrt{225}  

d= 15

3 0
3 years ago
Which of these is not a method used to calculate finance charges?
kenny6666 [7]

Answer is C. usual balance

6 0
4 years ago
(Fill in the blank)
luda_lava [24]

Answer:

x>1/3

Step-by-step explanation:

unless you are missing something else on the question.

equilateral means all sides are the same

so if one side is 9x-3 the other sides should also be 9x-3

9x-3=0

9x=3

x=1/3

4 0
3 years ago
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