The number of people contacted at each level of a phone tree can be represented by f(x) = 3x, where x represents the level.What
2 answers:
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Given the sequence:
6, 10, 14, 18,...
We will find the 75th term
The given sequence is an arithmetic sequence
Because there is a constant common differnce
d = 18 - 14 = 14 - 10 = 10 - 6 = 4
The first term = a = 6
The general formula of the arithmetic sequence is as follows:
Where: n is the nth term
To find the 75th term, substitute with n = 75 and a = 6, d = 4
So, the answer will be the 75th term = 302
Answer:
Formula used :
- <u>x²+2xy+y²</u><u> </u><u>=</u><u> </u><u>(x+y)²</u>
- <u>x²-2xy+y²</u><u> </u><u>=</u><u> </u><u>(x-y)²</u>
- <u>3) (x+3)²+(y-4)²=44</u> is the right answer.