Let's plug the values and see which couple satisfy the equation: since , if we plug the values from the first option we have
which is correct.
If we plug the values from the second option we have
which is not correct
If we plug the values from the third option we have
which is not correct
If we plug the values from the fourth option we have
which is not correct
So, the answer is the first one.
A. Since the question is asking for the ratio of new books to used books, you need to know the number of used books and new books.
Used books: 14-5=9 //////////// New books: 5
Therefore the answer is 5:9 or 5/9.
B. 14:9 or 14/9
Hope this answer helped you.
Have a great day!!
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I guess this must be
3^y = 8
ln 3^y = ln 8
y * ln 3 = ln 8
y = ln8 / ln 3
Answer:
a = 18 units
b = 9√3 units
Step-by-step explanation:
By applying sine rule in the given triangle,
sin(30°) =
a = 18 units
Now apply cosine rule in the given triangle,
cos(30°) =
b =
b = units