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photoshop1234 [79]

3 years ago

8

Is the common difference the same as the slope of a linear model?

1 answer:

dangina [55]3 years ago

7 0

The common difference is the constant rate of change, or the slope of the function. We can construct the linear function if we know the slope and the vertical intercept. To find the y-intercept of the function, we can subtract the common difference from the first term of the sequence.

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Each figure below is a regular polygon and has a radii and apothem shown. Find the measure of each numbered angle

KIM [24]

What he said is ok!!!

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3 years ago

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frosja888 [35]

Answer:

17.4

Step-by-step explanation:

side 1=4.5

side 2=4.5

side 3=4.5

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17.4

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2 years ago

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kow [346]

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3 years ago

If we wanted to create a new 90% confidence interval from a different sample for the proportion of those with a two on one date

slava [35]

Answer: 271

Step-by-step explanation:

The formula we use to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

, where $z_{\alpha/2}$ is the two-tailed z-value for significance level of $(\alpha)$

p = prior estimation of the proportion

E = Margin of error.

If prior estimation of the proportion is unknown, then we take p= 0.5 , the formula becomes

$n=0.5(1-0.5)(\dfrac{z_{\alpha/2}}{E})^2$

$n=0.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Margin of error : E= 0.05

Confidence level = 90%

Significance level $\alpha=1-0.90=0.10$

Using z-value table , Two-tailed z-value for significance level of $0.10$

$z_{\alpha/2}=1.645$

Then, the required sample size would be :

$n=0.25(\dfrac{1.645}{0.05})^2$

Simplify,

$n=270.6025\approx271$

Hence, the required minimum sample size =271

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3 years ago

What is 21,079,000.55 rounded to the nearest hundred thousand

tresset_1 [31]

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3 years ago

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