For each sequence, find the first 4 terms and the 10th term
1) 2n-1

1st term: 1, 2nd term: 3, 3rd term: 5, 4th term: 7 & 10th term: 19

Step-by-step explanation:

1st term: 2(1) - 1

              2 - 1 = 1

2nd term: 2(2) - 1

                4 - 1 = 3

3rd term: 2(3) - 1

               6 - 1 = 5

4th term: 2(4) - 1

               8 - 1 = 7

10th term: 2(10) -1

                20 - 1 = 19

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this