which list shows the temperatures in order from coldest to warmest in degrees fahrenheit? HELP ME PLSSS I NEED THIS SOON

Find the area.

Helga [31]

Answer:

C

Step-by-step explanation:

39*34= 1326 (the area of the full square

8*10=80 (the area of the small square that is cut off)

1326-80= 1246

8 0

4 years ago

Read 2 more answers

I will mark brainliest xx.

Ivanshal [37]

Answer:

24

Step-by-step explanation:

3x - 14 + 6 - 4 - 2x = 12 => 3x -12 - 2x = 12 => x = 24

8 0

3 years ago

Read 2 more answers

A random sample of 21 observations is used to estimate the population mean. The sample mean and the sample standard deviation ar

stepladder [879]

Answer:

a. CI=[128.79,146.41]

b. CI=[122.81,152.39]

c. As the confidence level increases, the interval becomes wider.

Step-by-step explanation:

a. -Given the sample mean is 137.6 and the standard deviation is 20.60.

-The confidence intervals can be constructed using the formula;

$\bar X\pm \ z\frac{s}{\sqrt{n}},$

where:

$s$ is the sample standard deviation
$z$ is the s value of the desired confidence interval

we then calculate our confidence interval as:

$\bar X\pm z\frac{s}{\sqrt{n}}\\\\=137.60\pm z_{0.05/2}\times\frac{20.60}{\sqrt{21}}\\\\=137.60\pm1.960\times \frac{20.60}{\sqrt{21}}\\\\=137.60\pm8.8108\\\\\\=[128.789,146.411]$

Hence, the 95% confidence interval is between 128.79 and 146.41

b. -Given the sample mean is 137.6 and the standard deviation is 20.60.

-The confidence intervals can be constructed using the formula in a above;

$\bar X\pm z\frac{s}{\sqrt{n}}\\\\=137.60\pm z_{0.01/2}\times\frac{20.60}{\sqrt{21}}\\\\=137.60\pm3.291\times \frac{20.60}{\sqrt{21}}\\\\=137.60\pm 14.7940\\\\\\=[122.806,152.394]$

Hence, the variable's 99% confidence interval is between 122.81 and 152.39

c. -Increasing the confidence has an increasing effect on the margin of error.

-Since, the sample size is particularly small, a wider confidence interval is necessary to increase the margin of error.

-The 99% Confidence interval is the most appropriate to use in such a case.

7 0

4 years ago

by the definition of suplementary angles Angle 1+angle 2=______and angle 2+angle 3=_______ than angle 1+ angle 2+ angle 3 by the

SVETLANKA909090 [29]

Answer:

By the definition of supplementary angles, angle 1 + angle 2 = 180° and angle 2 + angle 3 = 180°. Then angle 1 + angle 2 = angle 2 + angle 3 = 180°. Subtract angle 2 from each side. You get angle 1 = angle 3, or angle 1 ≅ angle 3.

Step-by-step explanation:

The Complete/Correct Question Reads:

By the definition of supplementary angles, angle 1 + angle 2 = _____ and angle 2 + angle 3 = ____ . Then angle 1 + angle 2 = angle 2 + angle 3 ______. Subtract angle 2 from each side. You get angle 1 = ______, or angle 1 ≅ ______.

-------------------------------------------------------------------------------------------------------------

By definition we know that if the Sum of Two Angles is Equal to 180° then the angles are Supplementary.

Now looking at the schematic we can see that our Supplementary angle pairs are:

$m$ ∠1 and $m$ ∠2

$m$ ∠3 and $m$ ∠2

So let us start solving.

$m$ ∠1 $+$ $m$ ∠2 $= 180^{o}$

$m$ ∠3 $+$ $m$ ∠2 $=180^{o}$

Then, we have

$m$ ∠1 $+$ $m$ ∠2 = $m$ ∠3 $+$ $m$ ∠2 $=180^{o}$

So subtracting $m$ ∠2 from each side we have:

$m$ ∠1 $+$ $m$ ∠2 $-$ $m$ ∠2 = $m$ ∠3 $+$ $m$ ∠2 $-$ $m$ ∠2

$m$ ∠1 $=$ $m$ ∠3 OR $m$ ∠1 ≅ $m$ ∠3

So your paragraph will be:

By the definition of supplementary angles, angle 1 + angle 2 = 180° and angle 2 + angle 3 = 180°. Then angle 1 + angle 2 = angle 2 + angle 3 = 180°. Subtract angle 2 from each side. You get angle 1 = angle 3, or angle 1 ≅ angle 3.

7 0

3 years ago

Solve for x: 3|x − 3| 2 = 14

bixtya [17]

Go to a website called Mathpapa. It is an algebra calculator and it solves it for you

3 0

4 years ago