3. What are the first four terms of the sequence represented by the expression n(n –1) – 5? (1 point)
– 7, –5, –3, 1
– 5, –10, –15, –20
0, 2, 6, 12
– 5, –3, 1, 7

Option D: The first 4 terms of the sequence is -5, -3, 1, 7

Explanation:

Given that the expression is

We need to determine the first 4 terms of the sequence.

The first 4 terms of the sequence can be determined by substituting n = 1, 2, 3, 4

1st term of the sequence:

Substituting n = 1 in the expression , we have,

Simplifying, we get,

Thus, the 1st term of the sequence is -5

2nd term of the sequence:

Substituting n = 2 in the expression , we have,

Simplifying, we get,

Thus, the 2nd term of the sequence is -3.

3rd term of the sequence:

Substituting n = 3 in the expression , we have,

Simplifying, we get,

Thus, the 3rd term of the sequence is 1.

4th term of the sequence:

Substituting n= 4 in the expression , we have,

Simplifying, we get,

Thus, the 4th term of the sequence is 7

Thus, the first 4 terms of the sequence is -5, -3, 1, 7

Hence, Option D is the correct answer.

the answer is b.)

< 1=< 2

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: