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Andru [333]
3 years ago
8

What is the answer to the following: (reference the photo for answer)

Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

9

Step-by-step explanation:

To calculate c from the first right angle triangle,

C2 = 36 + 16

C = sqrt(52)

To calculate a from the bigger right angle triangle,

B2 + 52 = (a + 4)2

B2 - a2 = -36 + 8a

A2 + 36 = B2

Solving both by elimination,

A = 72/8

=9

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Step-by-step explanation:

4y - 2(5 - y + 4) = 4y - 2(9 - y)

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