3 years ago

Consider the proportion

Mathematics

1 answer:

andre [41]3 years ago

6 0

Answer:

5k=21.6 and 4.32

Step-by-step explanation: Right on edg.

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3 years ago

An arithmetic sequence has a1 = 22 and a8 = 43. Find a15.

brilliants [131]

The 15th term of the arithmetic sequence $a_{15} = 64$

Option B is correct

The nth term of an arithmetic sequence is given as:

$a_{n} = a + (n - 1)d$

The first value, a = 22

$a_8 = a+(8 - 1)d\\a_8 = a + 7d$

Since $a_8 = 43$

$43 = 22 + 7d\\7d = 43 - 22\\7d = 21\\d = \frac{21}{7}\\d = 3$

The common difference, d = 3

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The 15th term of the arithmetic sequence = 64

Learn more here: brainly.com/question/24072079

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because it is less than -4 when it is suppose to be more than-4

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