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butalik [34]
3 years ago
10

A side of the triangle below has been extended to form an exterior angle of 129°. Find the value of x.

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
6 0

Answer:

51

Step-by-step explanation:

Since the angle of a line is 180 degrees all we need to do is substract 129 from 180 and we have the answer for x

180-129=51

nadya68 [22]3 years ago
4 0

129° + x = 180°. [Linear pair]

=> x = 180° - 129°

=> x = 51°

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maks197457 [2]

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Step-by-step explanation:

note ; it's a triangle*

5 0
2 years ago
Solve x3 = 64 over 27
Fiesta28 [93]

Answer:

x= 4/3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Ken has a pole that is 26 inches long. He wishes to cut it into two pieces so that one piece will be 8 inches longer than the ot
Yuliya22 [10]

Answer:

9 inches

Step-by-step explanation:

Do the question algebraically, represented by this equation:

let x be the shorter piece

x + (x + 8) = 26                      (longer piece is 8 units longer)

Remove brackets

x + x + 8 = 26                 Combine like terms              

2x + 8 = 26                   Start isolating "x"

2x + 8 - 8 = 26 - 8           Subtract 8 from both sides

2x = 18

2x/2 = 18/2           Divide both sides by 2

x = 9                    shorter piece

The shorter piece would be 9 inches.

If you needed the longer piece too:

longer piece = x + 8

x + 8

= 9 + 8

= 17

The longer piece would be 17 inches.

Check your answer:

Longer + Shorter = 26           Substitute the lengths

17 + 9 = 26                    Add

26 = 26                same number

LS = RS                left side equals right side

The answer is correct.

3 0
3 years ago
(x-5y,-3):(1,3y-x) find value of x and y<br>Please help me to solve thiss!!​
11Alexandr11 [23.1K]

Answer:

x=11, y=2

Step-by-step explanation:

We can set 1 equal to x-5y and then solve for x. and y.

x = 5y+1

y = x-1/5

We can use this information and plug back in the values for 3y-x or x-5y.

We can set -3 = 3y-x or 1 = x-5y.

To solve for x using -3 = 3y-x we can swap the values of x and y which would make it -3 = 3(x-1/5)-5(x-1/5)+1.

We can do a bit of algebra which would get us x = 11.

Knowing that y = x-1/5 we can plug in 11 for x. y = 11-1/5.

y=2

x=11, y=2

3 0
1 year ago
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