What are the first four terms of a geometric sequence if its common ratio is 5 and its first term is 2.5? (1 point)
2.5, 7.5, 12.5, 17.5
2.5, 0.5, 0.1, 0.02
2.5, 12.5, 62.5, 312.5
2.5, negative 2.5, negative 7.5, negative 12.5
2.5, 12.5, 62.5, 312.5
To find the first four terms of a geometric sequence, we multiply the common ratio by the previous term to get the next term.
Given that the common ratio is 5 and the first term is 2.5, we can find the first four terms as follows:
Term 1: 2.5 (given)
Term 2: 2.5 * 5 = 12.5
Term 3: 12.5 * 5 = 62.5
Term 4: 62.5 * 5 = 312.5
Therefore, the first four terms of the geometric sequence with a common ratio of 5 and a first term of 2.5 are:
2.5, 12.5, 62.5, 312.5
So the correct answer is: 2.5, 12.5, 62.5, 312.5