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3 years ago

Hurry need the answer plz

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

median: 86.5 2) 50.9% 3) 36.18 or 36.2 rounded

Step-by-step explanation:

To find the median, you have to order all of the numbers in a sequence from smallest to largest, and pick the number in the middle.

You'd order this sequence:

70, 77, 79, 84, 86, 87, 87, 91, 91, 91

The number in the middle is:

between 86, 87 the amount of numbers in the sequence is an even number.

The number between these two numbers, however, is 86.5

2)

140/275 = .509 or 50.9%

.18 x 201 = 36.18 or 36.2

Misha Larkins [42]3 years ago

3 0

6,320.80 is answer to 3

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2 years ago

Indicate the general rule for the arithmetic sequence with a3 = -12 and a8 = -37

Mandarinka [93]

Answer:

The general rule is $a_n = -2 - 5(n-1)$

Step-by-step explanation:

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In an arithmetic sequence, the difference between consecutive terms is always the same, and this difference is called common difference.

The general rule of an arithmetic sequence is given by:

$a_{n} = a_1 + (n-1)d$

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First we find the common difference. So

$a_n = a_m + (n-m)d$

$a_8 = a_3 + (8-3)d$

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So the general rule is:

$a_n = a_1 - 5(n-1)$

$a_n = -2 - 5(n-1)$

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