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Brrunno [24]
3 years ago
8

ANSWER ASAP! In an arithmetic sequence, a17 = -40 and

Mathematics
1 answer:
dsp733 years ago
8 0

Answer:

The Recursive Formula of sequence is: 8, 5, 2, -1, -4,...

Step-by-step explanation:

Arithmetic Sequence is a sequence in which every two neighbor digits have equal distances.

For finding the nth term, we use formula

aₙ = a + (n - 1) d

where, aₙ = value of nth term

a = First term

n = number of term

d = difference

We have given that,

a₁₇ = -40  ⇒ a₁₇ = a + (17 - 1)d

⇒ -40 = a + 16d        →      (1)

Also, a₂₈ = -73  ⇒ a₂₈ = a + (28 - 1)d

⇒ -73 = a + 27d           →    (2)

Solving, equation (1) and (2), We get  

a = 8, d = -3

Hence, First term = a = 8

Second term = a + d = 8 - 3 = 5

Third term = 5 + d = 2

Fourth term = 2 + d = -1

Thus, The Arithmetic Sequence is: 8, 5, 2, -1, -4,...

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Abby sold half of her comic books and then bought seventeen more. She now has 32. With how many did she begin?
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Step-by-step explanation:

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What is the percent of change from 45to56
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Answer:

24.44%

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Read 2 more answers
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Answer:

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Step-by-step explanation:

First we need to figure out what she will pay for the shoes.  She is getting 30 percent off the 65 dollars.

Discount = price * percent off

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The cost of her shoes is the price minus the discount.

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To find the total discount, take the original price and subtract the final cost.

Total discount = 85-45.50

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To find the total percent discount, we use the formula

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3 years ago
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