Form a sequence that has two arithmetic means between -1 and 59.

a.

-1, 29, 29, 59

c.

19, -1, 59, 39

b.

-1, 19, 39, 59

d.

-1, 14, 29, 44, 59

select the best answer from the choices provided

a

b

c

d

pls

b

Step-by-step explanation:

The sequence will be arithmetic with 4 terms and a common difference d, which requires to be found.

The n th term of an arithmetic sequence is

= a + (n - 1)d

where a is the first term

here a = - 1, n = 4 and = 59, hence

- 1 + 3d = 59 ( add 1 to both sides )

3d = 60 ( divide both sides by 3)

d = 20, thus the four terms are

-1

- 1 + 20 = 19

19 + 20 = 39

39 + 20 = 59, that is

- 1, 19, 39, 59 → b

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

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