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Gennadij [26K]
3 years ago
9

PLS HELP!!!!!!!!!!!!!Write the recursive rule for the sequence: 5, -10, 20, -40, 80

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

<u>We observe that this is a GP  with:</u>

  • the first term  t₁ = 5
  • common ratio r = -2

<u>The nth term is:</u>

  • tₙ = t₁rⁿ⁻¹
  • tₙ = 5(-2)ⁿ⁻¹
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Using the fundamental counting theorem, we have that:

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A similar problem is given at brainly.com/question/24067651

5 0
3 years ago
solve for each please i really need help if u want to help me with my test and i get an a or a b i will give u 500 dollars
Len [333]

Answer:

The relation is not a function

The domain is {1, 2, 3}

The range is {3, 4, 5}

Step-by-step explanation:

A relation of a set of ordered pairs x and y is a function if

  • Every x has only one value of y
  • x appears once in ordered pairs

<u><em>Examples:</em></u>

  • The relation {(1, 2), (-2, 3), (4, 5)} is a function because every x has only one value of y (x = 1 has y = 2, x = -2 has y = 3, x = 4 has y = 5)
  • The relation {(1, 2), (-2, 3), (1, 5)} is not a function because one x has two values of y (x = 1 has values of y = 2 and 5)
  • The domain is the set of values of x
  • The range is the set of values of y

Let us solve the question

∵ The relation = {(1, 3), (2, 3), (3, 4), (2, 5)}

∵ x = 1 has y = 3

∵ x = 2 has y = 3

∵ x = 3 has y = 4

∵ x = 2 has y = 5

→ One x appears twice in the ordered pairs

∵ x = 2 has y = 3 and 5

∴ The relation is not a function because one x has two values of y

∵ The domain is the set of values of x

∴ The domain = {1, 2, 3}

∵ The range is the set of values of y

∴ The range = {3, 4, 5}

3 0
3 years ago
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