A blood bank needs 9 people to help with a blood drive. 12 people have volunteered. Find how many different groups of 9 can be f
1 answer:
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Answer:
∠ B ≈ 66.42°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos B = =
=
, thus
B = (
) ≈ 66.42° ( to the nearest hundredth )
Answer:
The correct answer will be "-1.66".
Step-by-step explanation:
Let z₀ be,
⇒
Now,
⇒
Thus the above is the right answer.