18=w over 2 Please help and explain!
2 answers:
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This question is asking "Where does cosine equal 
?"
Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or
, cosine is equal to .
Based on our unit circle values and the domain of the cos^{-1} function, we see that at 30 degrees, or
Answer:
There are a 25% probability that Christine fails the course.
Step-by-step explanation:
We have these following probabilities:
A 50% probability that Christine finds a tutor.
With a tutor, she has a 10% probability of failling.
A 50% probability that Christine does not find a tutor.
Without a tutor, she has a 40% probability of failing.
Probability that she fails:
10% of 50%(fail with a tutor) plus 40% of 50%(fail without a tutor). So
There are a 25% probability that Christine fails the course.
First you would subtract the monthly fee from the total bill
Maria spend $12.35 on songs, to find out how many songs, you divide that by $.95
Maria bought 13 songs this month.
Maria spend $12.35 on songs, to find out how many songs, you divide that by $.95
Maria bought 13 songs this month.