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malfutka [58]
3 years ago
7

Write an equation to the nth term of the arithmetic sequence. (write the equation for the sequence)

Mathematics
1 answer:
azamat3 years ago
4 0

Answer:

15,13,11,9,…

Given

2

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

3

4

when n = 515,13,11,9,…

Given

2

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

3

4

when n = 515,13,11,9,…

Given

2

13 - 15 = -2

11 - 13 = -2

9 - 11 = -2

d = -2

3

4

when n = 5

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What is the variance of the following data? If necessary, round your answer to two decimal places. 17, 13, 13, 22, 11, 20
Bond [772]
Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:

mean = (17+13+13+22+11+20)/6 = 16.

Now for each value, let's see how far it is from this mean. We'll square these distances and average them. That's our variance.

17 distance 1 squared = 1
13 distance 3 squared = 9
13 distance 3 squared = 9
22 distance 6 squared = 36
11 distance 5 squared = 25
20 distance 4 squared = 16

Now average these outcomes:

variance = (1+9+9+36+25+16)/6 = 16.

So the variance by coincidence is the same as the mean.

Answer C is your answer.
7 0
3 years ago
What are the solutions of the equation x4 – 5x2 – 36 = 0? use factoring to solve.
algol13
X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0
(x-3)(x+3)(x-2)(x+2) = 0

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6 0
3 years ago
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Find each percent of the markup. $11.5 marked up to $25. Round to the nearest percent.
soldi70 [24.7K]
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8 0
2 years ago
Use the rule to write the first five terms of the pattern.
AlekseyPX

Answer:

A =First term of the pattern = 11

To find the first five terms we have to use the rule which is

Add 10 to first term and then subtract 5 from it.Which is equivalent to

= A +10 -5

1. Second Term = 11 + 10 -5

  = 21 - 5

   =16

→Third term = 16 +10-5

        = 26 - 5

       = 21

→Fourth term : 21 + 10 - 5

     = 31 -5

      = 26

→Fifth term : 26 +10 -5

                = 36- 5

                = 31

→Sixth term:

=31 + 10- 5

= 41 -5

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So, the first five term apart from 11 is 16, 21,26,31,36 which is an Airthmetic progression.



4 0
3 years ago
Read 2 more answers
Does (1, 0) make the equation y = 4x true?
Deffense [45]

Answer:

No

Step-by-step explanation:

4*1 = 4, not 0.

7 0
2 years ago
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