Answer:
-64
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Step-by-step explanation:
multiplying by -4 each time
Answer:
16 b plus a is mathematically plus 185 so 15
Hello!
To find cosine, use the formula cos = adjacent / hypotenuse.
According to angle B, adjacent of angle B is side A, and the hypotenuse is side c because the hypotenuse is always opposite the right angle.
Therefore, the cosine of angle B is a/c.
