Write an explicit formula, term of sequence HELP I DON’T UNDERSTAND here’s a picture:
2 answers:
Answer:
= 10n - 5
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = 15 - 5 = 25 - 15 = 10
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 5 and d = 10 , then
= 5 + 10(n - 1) = 5 + 10n - 10 = 10n - 5
You might be interested in
Answer:
The standard deviation of the sample mean differences is _5.23_
Step-by-step explanation:
We have a sample of a population A and a sample of a population B.
For the sample of population A, the standard deviation is
The sample size is:
.
For the sample of population B, the standard deviation is
The sample size is:
.
Then the standard deviation for the difference of means has the following form:
Finally
Answer:
Step-by-step explanation:
To find the x-intercept, substitute 0 for y and solve for x:
Divide both sides by 2:
Add 7 to both sides to isolate x:
The x-intercept for is 7 at point
.
Remove parentheses:
Subtract 2 from both sides:
The x-intercept for is -2 at point
.
Finito.