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kiruha [24]
3 years ago
14

When a time series appears to approximately have consistent percentage differences from observation to observation, the appropri

ate model to fit is the:
A. quadratic trend.
B. linear trend.
C. exponential trend.
D. ARIMA.
Mathematics
1 answer:
ololo11 [35]3 years ago
6 0

Answer: option B

Step-by-step explanation:

Suppose you take a measure for each 5 seconds in a given observation, and the thing you are observing seems to change in the same amount in each meassure. This may mean that you are observing a linear relationship of the form y = a*x + b

Then, the simpler way to study this data set is by fiting with a linear equation.

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Find the sum of the convergent series. (round your answer to four decimal places. ) [infinity] (sin(9))n n = 1
Alexus [3.1K]

The sum of the convergent series \sum_{n=1}^{\infty}~(sin(1))^n is 5.31

For given question,

We have been given a series \sum_{n=1}^{\infty}~(sin(1))^n

\sum_{n=1}^{\infty}~(sin(1))^n=sin(1)+(sin(1))^2+...+(sin(1))^n

We need to find the sum of given convergent series.

Given series is a geometric series with ratio r = sin(1)

The first term of the given geometric series is a_1=sin(1)

So, the sum is,

= \frac{a_1}{1-r}

= sin(1) / [1 - sin(1)]

This means, the series converges to sin(1) / [1 - sin(1)]

\sum_{n=1}^{\infty}~(sin(1))^n

= \frac{sin(1)}{1-sin(1)}

= \frac{0.8415}{1-0.8415}

= \frac{0.8415}{0.1585}

= 5.31

Therefore, the sum of the convergent series \sum_{n=1}^{\infty}~(sin(1))^n is 5.31

Learn more about the convergent series here:

brainly.com/question/15415793

#SPJ4

7 0
1 year ago
Help me please struggling
Sedbober [7]

Answer:

i think it is 27 because the last one adds up to 27

i am not really good at this stuff

3 0
3 years ago
Solve for z.<br> a(5 - 2) = bx – 8<br><br> x=
nignag [31]

Answer:

x = (3a + 8)/b

Step-by-step explanation:

a(5 - 2) = bx – 8

bx = a(5 - 2) + 8

x = (3a + 8)/b

4 0
4 years ago
Read 2 more answers
Please Help!!!
cupoosta [38]

Answer: You will save $228 dollars after 12 weeks

Step-by-step explanation:

4 0
3 years ago
Ok so I’m using most of my points on this so fake answers will be reported understand ok good
Arada [10]
<h2>○=> <u>Correct answer</u> :</h2><h2>\color{plum} = \tt\bold{30 \: cubic \: inches}</h2><h3>○=> <u>Steps to derive correct answer</u> :</h3>

Given :

Base area of Ms. Jones decorative pyramid = 6 inches²

Height of the decorative pyramid = 15 inches

We know that :

\color{hotpink}\tt \: volume \: of \: a \: triangular \: pyramid\color{plum} \tt \: =  \frac{1}{3}Bh

Volume of the decorative pyramid :

=\tt  \frac{1}{3}  \times 15 \times 6

=\tt \frac{15 \times 6}{3}

=\tt  \frac{90}{3}

\color{plum} =\tt 30 \:  {inches}^{3}

Therefore, the volume of the decorative pyramid with Ms. Jones = 30 inches³

6 0
3 years ago
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