Anna draws an angle in her notebook. in how many points do the rays intersect?
2
0
1
3

Step-by-step explanation:

An angle is a shape, formed by two lines or rays diverging from one common point (the vertex).

Assuming it's not a 0° angle nor an 180° angle, the rays intersect in C) 1 point.

aₙ = 63 * (1/3)ⁿ

Step-by-step explanation:

In the sequence 63, 21, 7,... each term is divided by 3 to get the next term

Therefore, this is a geometric series where r (the common ratio) is 1/3.

The first term in the series is 63, so that is our a₀.

The general form for a geometric series is a₀ * rⁿ

Therefore, the formula for aₙ is

aₙ = 63 * (1/3)ⁿ

I hope this helps!