The total cost, c, in dollars, of b bottles of water is c = 1.1b. What is the constant of proportionality?
2 answers:
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Given:
Solution:
Complex formula:
Let us simplify one by one.
|3 + 4i| = 5
|3 - 4i| = 5
|-3 + 4i| = 5
|-3 - 4i| = 5
Substitute these in the given expression:
The solution of the expression is 20.