Answer:
Step-by-step explanation:
The explicit formula for a geometric sequence:
- n-th term
- first term
- common ratio
We have
The common ratio:
<h2>It's not a geometric sequence.</h2>
If then the common ratio is
Put to the explicit formula:
Put and solve for <em>n </em>:
we have the following:
solving for b:
therefore, the answer is 16
Answer:
B
Step-by-step explanation:
Since both angles together need to equal 180, set up your formula as
(x+30)+(x+10)=180
2x+40=180
Measure of the central angle that created the arc, the angle of 2 radii, to caculate arc length . The arc length is the fractional amount of the circumference of the circle