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2 years ago

Pls I don’t know what to do

Mathematics

2 answers:

Nat2105 [25]2 years ago

5 0

The second & last one

Vesnalui [34]2 years ago

4 0

Answer:

A and C the first and third cause when u are finding the y-intercept you have to put x as zero

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What is an example of when you would want consistent data and, therefore, a small standard deviation?

steposvetlana [31]

Answer:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

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

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

Step-by-step explanation:

For example if we have the following data:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

We see that the data are similar for all the observations so we would expect a small standard deviation

If we calculate the sample mean we can use the following formula:

$\bar X=\frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

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

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

8 0

2 years ago

Stephanie ran 1 lap in 6 minutes. At the rate, how far would she run in 30 minutes. Use rates. Show all your work.

Delicious77 [7]

Since 1 lap I every 6 minutes then 30\6 is 5 so the answer is 5 LAPS

8 0

2 years ago

Read 2 more answers

The data were gathered by the following procedure, reported in the study. "Between January and June 1998, parents of children ag

WARRIOR [948]

Answer:

This was an observational study.

Step-by-step explanation:

Given is that parents of children completed a questionnaire on the child’s light exposure both at present and before the age of 2 years.

This was an observational study since there is no treatment or control group.

We know that treatment, control groups or treatment groups are not specific to randomized control experiments.

7 0

2 years ago

What is 7/8 - 1/4 in simplest form?

Stells [14]

Answer: 5/8

Step-by-step explanation:

You could convert 1/4 to 2/8 because the numbers you're subtracting have a common factor of 2. After subtracting 2/8 from 7/8, you're left with 5/8.

4 0

1 year ago

Read 2 more answers

For 12-13, use the figure. A bike path crosses a road as shown. Solve for each indicated angle or variable.

Volgvan

Answer:

x=21° and ∠KMH=96°

Step-by-step explanation:

From the given information that a bike path crosses a road and the given figure, we get

∠GMH=∠KMI=84°(Vertically opposite angles)

⇒4x=84°

⇒x=21°

therefore, the value of ∠GMH=4x=4(21)=84°

Now, ∠KMH+∠KMI=180°( Linear pair)

⇒∠KMH+84°=180°

⇒∠KMH=180-84

⇒∠KMH=96°

Thus, the value of ∠KMH is 96°

6 0

2 years ago