Which equations will the number 2 make true?
2 answers:
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Imagine this as a circle. The circle will have a radius of 17mi and the lighthouse will be in the middle. The area of the circle will be the area over which the beacon can be seen.
is the equation for the area of the circle where A is the area.
Now we simply plug in our information
A=
A=907.9
Now we simply plug in our information
A=
A=907.9
Answer:
E.
Step-by-step explanation:
Let's look at the sequence:
The sequence has a common difference. We say it has a common difference because 8-3 has the same value as 13-8.
The common difference is what these differences are equal which is 5.
The sequence is therefore linear or arithmetic (same thing).
So it has form where the slope/common difference is 5.
We need to find the intercept
.
The list of points is related to the above sequence:
I only need one of these points to find .
Let's use the first one since it has smallest numbers and I don't wish to use the calculator unless I really have to.
with
:
Subtract 5 on both sides:
So the equation for the set of points is:
Now they are using instead of x[/tex]:
Since all summations begin at , then the choices are done to either choice C and choice E.
I need to find how many terms are in the given series. The last number is 33. So what term number is associated with the value 33.
Add 2 on both sides:
Divide both sides by 5:
So there are 7 terms and the 7th term is 33.
So the answer is choice E.