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zubka84 [21]
3 years ago
15

I need help Knowing What This thing does Before they ban me XD meme life

Mathematics
1 answer:
ElenaW [278]3 years ago
8 0
Helps I get answers when u need help with school mark brainliest and memes for life
You might be interested in
15, 11, 7, 3, -1, ... explicit formula and recursive formula
monitta

Recursive formula is: a_n = a_{n-1} -4

Explicit formula is: a_n = 19-4n

Step-by-step explanation:

Given sequence is:

15,11,7,3,-1

Here

a_1 = 15\\a_2 = 11\\a_3 = 7

First of all, we have to find the common difference

Common difference is the difference between consecutive terms of an arithmetic sequence

So,

d = a_2-a_1 = 11-15 = -4\\d = a_3-a_2 = 7-11 = -4

<u>Recursive Formula:</u>

A recursive formula is used to find the next term of an arithmetic sequence using previous term and common difference

General form of recursive formula for a given common difference d is:

a_n = a_{n-1} + d

Putting the value of d

a_n = a_{n-1} -4

<u>Explicit Formula:</u>

The explicit formula is given by:

a_n = a_1 + (n-1)d

Putting the first term and common difference

a_n = 15 + (n-1)(-4)\\a_n = 15 -4n+4\\a_n = 19-4n

Hence,

Recursive formula is: a_n = a_{n-1} -4

Explicit formula is: a_n = 19-4n

Keywords: Arithmetic sequence, common difference

Learn more about arithmetic sequence at:

  • brainly.com/question/726990
  • brainly.com/question/725998

#LearnwithBrainly

4 0
4 years ago
Find the area please
STatiana [176]
 The correct should 356 yards^2 
to solve this you simply add the are of the two squares after you calculate the area for each of them.
8 0
3 years ago
Are the graphs of 2x-4y=-12 and y=2x+1 parallel, perpendicular, or neither?
Sauron [17]

Answer:

I believe the answer is neither

Step-by-step explanation:

4 0
3 years ago
Omgggg plss help me :(((((((
True [87]

Step-by-step explanation:

(-4,10)

hope it helps you

6 0
3 years ago
Read 2 more answers
The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.26 millimeters and a standard deviat
Molodets [167]

Answer:

Top 10%: 5.35 millimeters

Bottom 10%: 5.17 millimeters

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 5.26, \sigma = 0.07

Top 10%

X when Z has a pvalue of 1-0.1 = 0.9. So X when Z = 1.28.

Z = \frac{X - \mu}{\sigma}

1.28 = \frac{X - 5.26}{0.07}

X - 5.26 = 1.28*0.07

X = 5.35

Bottom 10%

X when Z has a pvalue of 0.1. So X when Z = -1.28

Z = \frac{X - \mu}{\sigma}

-1.28 = \frac{X - 5.26}{0.07}

X - 5.26 = -1.28*0.07

X = 5.17

5 0
3 years ago
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