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lana66690 [7]
3 years ago
14

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

Mathematics
2 answers:
IRISSAK [1]3 years ago
5 0

Answer:

x=39

Step-by-step explanation:

All sides of triangle must be equal to a grand total of 180°

So, we can take the two sides we know that have the lengths,

(39°, 102°)

39+102=141°

Now we can subtract 180° by 141° to get 39°.

x = 39°

Ann [662]3 years ago
3 0
The answer is x=39


all the angles (degrees) should add up to 180 for a triangle.

39 + 102 = 141
180-141= 39


so, 39+39+102=180 :)
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<h3>What is a mathematical expression?</h3>

A mathematical expression is an expression which uses mathematical symbols and mathematical operations to represent an idea.

Two mathematical expressions are equivalent if they have the same value

The expression that is equivalent to negative two raised to the fourth power divided by negative two raised to the second power can be written as (-2)⁴/(-2)² = 2²

An equivalent expression is negative two raised to the sixth power divided by negative two raised to the fourth power written as : (-2)⁶/(-2)⁴ = 2²

In conclusion, two mathematical expressions are equivalent if they have the same value when fully expressed.

Learn more about mathematical expression at: brainly.com/question/4344214

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