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Alenkinab [10]
3 years ago
7

Help and please explain

Mathematics
2 answers:
Elan Coil [88]3 years ago
8 0

Answer:

90 degrees because A is an acute angle so x equals 45 degrees and so I multiply that by 2

Step-by-step explanation:

GarryVolchara [31]3 years ago
8 0
So the right angle is equal to 90° and the rest is unknown.

using the triangle sim theorem, which states that all interior angles are equal to 180°.

so it would be x+2x+90°=180°.

then you would need to simply which is 3x+90°=180°

subtract 90° from both sides and get 3x=90°

and then divide both sides by 3 which is 30°

then you would need to find the angle of B which is 2x so you would need to substitute 30° for x which is 60°

the answer is 60°

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The Factorization of 121b⁴ − 49 is (11b^2 + 7)(11b^2 - 7).

The equation 121b⁴ − 49

To find the Factorization of 121b⁴ − 49.

<h3>What is the factor of a^2-b^2?</h3>

The factor of a^2-b^2 is  (a+b)(a-b)

We have write the given equation in the form of a^2-b^2

= 121b^4 - 49\\= (11b^2)^2 - 7^2\\= (11b^2 + 7)(11b^2 - 7)

Therefore the factor of the 121b^4 − 49 is (11b^2 + 7)(11b^2 - 7).

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