The reason you got it wrong is because you solved for the side a instead of the angle Z, which was what the question asked you to solve for. You can find Z by doing cos Z = 12/35, which will get you cos Z = 0.343, and Z will be equal to about 70º.
648 is the three-digit positive integers have three different digits
According to the statement
we have given that there are three positive digit number are formed with three distinct digits.
And we have to find that the how many words are formed with distinct numbers.
So, to solve this type of problem the Combination formula is best.
Because it provides the all possibilities that from how many ways numbers are formed.
So, from a combination formula
here we take 9 two times because first time when we let a number then remaining numbers are 9. and second time remaining numbers are also 9 because we let the distinct number but for third number there will be a probability that choosing number will be same.
So, Three digit positive number become from 9*9*8 =648
So, 648 is the three-digit positive integers have three different digits.
Learn more about COMBINATION here brainly.com/question/4658834
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So if it was writing with exponents it is;
-3/7^3
but if it is to solve it is;
-27/343
Answer: the cost of each pendant is $2.1
Step-by-step explanation:
Let x represent the cost of each pendant.
Amy made 3 identical necklaces, each having beads and a pendant. It means that the cost of the pendant used is $3x. The total cost of the beads and pendants for all 3 necklaces was $13.20. If the beads cost a total of $6.90, then the equation would be written as
6.90 + 3x = 13.20
3x = 13.20 - 6.90
3x = 6.3
x = 6.3/3
x = 2.1