Answer:
= - 2
Step-by-step explanation:
The n th term ( explicit formula ) for a geometric sequence is
= a
where a is the first term and r the common ratio
Here a = - 2 and r = 8 ÷ - 2 = - 4, thus
= - 2
Answer:
x = 109°
Step-by-step explanation:
x° is 37° + 72°, due to exterior angle property.
so x° = 109°
Answer:
23.333 percent
Step-by-step explanation:
7/30 of the students are undecided.