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madam [21]
3 years ago
10

An arithmetic sequence has a common difference of 2 and contains the value 86 at some point in the sequence. Which of the follow

ing recursive formulas could represent this sequence?
Group of answer choices

an = an – 1 + 2; a1 = 1

an = an – 1 + 2; a1 = 2

an = an – 1 + 1; a1 = 2

an = an – 1 + 1; a1 = 1
Mathematics
1 answer:
shusha [124]3 years ago
3 0

Answer:

B. a_{n} = a_{n-1}+2; a_{1} = 2

Step-by-step explanation:

According to the statement, we find that the following two conditions must be observed:

a_{i} = 86 (Eq. 1)

a_{i}-a_{i-1} = 2 (Eq. 2)

Since the difference between two even numbers leads to another even number. Hence, a_{1} must be an even number and the correct answer is B.

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Test |
zheka24 [161]

Step-By-Step Explanation:

1. 20.95 x 1 = 20.95

2. 119.5 x 2 = 239

3. 8.75 x 5 = 77.5

4. 24.25 x 7 = 169.75

5. 52.3 x 3 = 156.9

6. 0.4

7. 0.4

8. 0.4

9. 0.7

10. 0.5

<em><u>If this helped, please consider picking this answer as the Brainliest Answer. Thank you!</u></em>

6 0
2 years ago
How much, in total, did Noel spend to cash her three most recent paychecks?
Stolb23 [73]

Based on the amount that Noel cashed in each of her most recent paychecks, the amount she spent in total is $10.99.

<h3>How much did Noel spend?</h3>

The bank directory shows that you are charged 1.99% of the amount being cashed as well as a check processing fee of $1.39.

The amount Noel spent is therefore:

= (1.99% x 100.53) + (1.99% x 119.38) + (1.99% x 122.52) + (1.39 x 3 checks)

= 2.00 + 2.38 + 2.44 + 4.17

= $10.99

Find out more on bank charges at brainly.com/question/26494219.

3 0
2 years ago
Sandra read 5 books deacon read 6 books, and Breanna read 7 books. One book was read by all 3 children, but every other book was
lesya692 [45]

4 + 5 + 6 = 15
books
5 0
3 years ago
How do you work this
nevsk [136]
You just ask your questions in ask
3 0
4 years ago
Find the midpoint of the segment with the endpoints: (-4,5) and (7,-9)
kati45 [8]

Answer:

Let's denote: A(-4, 5), B(7, -9).

If P(x, y) is the midpoint of AB, then we have:

x = (-4 + 7)/2 =3/2

y = (5 + (-9))/2 = -2

=> P(3/2, -2)

Hope this helps!

:)

8 0
4 years ago
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