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3 years ago

What is the definition of undefined term?

2 answers:

5 0

I think the answer is :

In Geometry, we have several undefined terms: point, line and plane. From these three undefined terms, all other terms in Geometry can be defined. ... The first term is point. The second term is plane. And the third undefined term is the line.

Hope This Helps.

skelet666 [1.2K]3 years ago

5 0

The answer is B.

I got it right on apex, please 5 star

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Mr. Smith has 5 1/2 acres of land for sale. He divided the land into 1/2-Acre lots. How many lots are for sale?

astraxan [27]

Answer:

Step-by-step explanation:

I'm sure this might be correct.

4 0

3 years ago

Read 2 more answers

What is the effect of y= 1/x when transformed to y=1/x+11

ch4aika [34]

Answer:

The effect would be Adding 11 this would change the solution from no x intercept/zero to x=-1/11 this makes a big diffrence

Step-by-step explanation:

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3 years ago

Use the numbers 2, 3, and 4 to provide an example of the Associative Property of Multiplication.

liberstina [14]

Answer:

(2x3) x 4= 2 (3x4)

3 0

3 years ago

(0,-7), (4,1) how to write in standard form

MrRa [10]

Answer:

slope intercept form of the equation for these points would be y=2x-7

standard form of linear equations for this equation would be: -2x+y=-7

Step-by-step explanation:

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3 years ago

The ages of a random sample of five university professors are 39, 54, 61, 72, and 59. Using this information, find a 99% confide

blsea [12.9K]

Answer:

$38.898 \leq \sigma^2 \leq 2792.356$

Now we just take square root on both sides of the interval and we got:

$6.237 \leq \sigma \leq 52.843$

Step-by-step explanation:

Data given and notation

34,59,61,71,59

We can calculate the sample standard deviation with the following formula:

$s^2= \frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}$

$s= \sqrt{s^2}$

s=12.021 represent the sample standard deviation

$\bar x$ represent the sample mean

n=5 the sample size

Confidence=99% or 0.99

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population mean or variance lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

The Chi square distribution is the distribution of the sum of squared standard normal deviates .

Calculating the confidence interval

The confidence interval for the population variance is given by the following formula:

$\frac{(n-1)s^2}{\chi^2_{\alpha/2}} \leq \sigma^2 \leq \frac{(n-1)s^2}{\chi^2_{1-\alpha/2}}$

The next step would be calculate the critical values. First we need to calculate the degrees of freedom given by:

$df=n-1=5-1=4$

Since the Confidence is 0.99 or 99%, the value of $\alpha=0.01$ and $\alpha/2 =0.005$ , and we can use excel, a calculator or a table to find the critical values.