Answer:
Step-by-step explanation:
The general formula for the twelfth term of a geometric sequence is:
Where 
is the first term and r is the common ratio
In this case we know that:
The equation is:
So for 
we look for 
First solve for parenthesis
73 + 27 = 100
x - 100 = 400
Isolate the x. Add 100 to both sides
x - 100 (+100) = 400 (+100)
x = 400 + 100
x = 500
500 is your answer for x
hope this helps
Answer:
7
Step-by-step explanation:
We can setup this equation as x representing his number. (x+13) * 3 = 9x -3.
Now, we just need to solve for x.
3(x+13)=9x-3
x+13=3x-1
14=2x
x=7
None of the alternatives are correct. The domain's lower bound is 6, however it contains 6, therefore a bracket is required rather than a parenthesis. [6 (infinity)] Because infinity is not included, a bracket for infinity is invalid. The range is from 0 to infinity. assuming you meant 1/sqr (x-6). However, none of the options are right if you meant 1/(sqr(x) - 6).
or did you mean 1/sqrx - 6? However, none of them are correct.
