Answer:
an = 12 -7(n-1)
an = 19-7n
Step-by-step explanation:
The explicit formula for an arithmetic sequence is
an = a1 +d(n-1) where a1 is the first term and d is the common difference
a1 =12
We find d by taking the second term and subtracting the first term
d = 5-12
d = -7
an = 12 -7(n-1)
We can simplify this
an = 12 -7n+7
an = 19-7n
F(-3)=4(-3)^2+5(-3)-12
=36-15-12
=36-27
=-9
Answer:
--- test statistic
--- p value
Conclusion: Fail to reject the null hypothesis.
Step-by-step explanation:
Given


--- Null hypothesis
---- Alternate hypothesis

Solving (a): The test statistic
This is calculated as:

So, we have:






Solving (b): The p value
This is calculated as:

So, we have:

Look up the z probability in the z score table. So, the expression becomes


Solving (c): With
, what is the conclusion based on the p value
We have:

In (b), we have:

By comparison:

i.e.

So, we fail to reject the null hypothesis.
All you want to do is find what 686-365 is because that's the percent
increase. Next you divide the number that you got by 365 and that's your
percentage increase.
<span>The answer to this item is the first choice, radius. The line formed by the radius to the chord of the circle which forms a right angle with the chord is also the perpendicular bisector of the chord. The answer therefore to thisi tem is the first choice, radius. </span>