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Readme [11.4K]
2 years ago
14

Evaluate the expression when у = 3 and z = 9. 2 y + (z-7)² x 2

Mathematics
1 answer:
borishaifa [10]2 years ago
5 0

Step-by-step explanation:

y + (z - 7) {}^{2}  \times 2 \\ 3 + (9 - 7) {}^{2}  \times 2 \\ 3 + (2)  {}^{2}  \times 2 \\ 3 + 4 \times 2 \\ 3 + 8 = 11

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#1
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By the law of sines:

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#2
m∠C=180 - 119 - 27 = 34°

By the law of sines:

b/sinB = a/sinA  ⇒  
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#3
m∠C=180 - 57 - 37 = 86°

By the law of sines:

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