100 points!asap

1. the first term of a geometric sequence is 6 and the common ratio is -8. find the 7th term.

2. the first term of a geometric sequence is -3 and the common ratio is 1/2. find the 6th term.

3. the first term of a geometric sequence is -0.25 and the common ratio is -3. find the 10th term.

Step-by-step explanation:

The explicit formula of a geometric sequence:

1. We have

Substitute:

Calculate the 7th term. Put n = 7:

2. We have

Substitute:

Calculate the 6th term. Put n = 6:

3. We have

Substitute:

Calculate the 10th term. Put n = 10:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: