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3 years ago

0.55a - a I don’t understand how this comes out to -0.45a. Can someone explain?

Mathematics

2 answers:

Dmitry [639]3 years ago

8 0

Step-by-step explanation:

please give me brainlest

Black_prince [1.1K]3 years ago

5 0

Answer:

- 0.45a

Step-by-step explanation:

0.55a - a

O.55 - 1 = - 0.45

= - 0.45a

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Answer:

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Step-by-step explanation:

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substitute

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step 2

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substitute the given values

$\frac{9}{sin(A)}=\frac{12.14}{sin(64^o)}$

solve for sin(A)

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step 3

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The sum of the interior angles in any triangle must be equal to 180 degrees

$m\angle A+m\angle B+m\angle C=180^o$

substitute the given values

$41.78^o+m\angle B+64^o=180^o$

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$m\angle B=180^o-105.78^o$

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