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4 years ago

Can someone help asAP!

Mathematics

1 answer:

Doss [256]4 years ago

5 0

Answer:

Option 3

Step-by-step explanation:

Interior angles of a triangle add up to 180 degrees. So to find a missing angle we just need to subtract the rest of the angles from 180.

So,

$\theta = 180-(\alpha +\beta )$

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A random sample of 1000 people was taken. Four hundred fifty of the people in the sample favored Candidate AT. The 95% confidenc

azamat

Answer:

$0.45 - 1.96 \sqrt{\frac{0.45(1-0.45)}{1000}}=0.419$

$0.45 + 1.96 \sqrt{\frac{0.45(1-0.45)}{1000}}=0.481$

And the 95% confidence interval would be given (0.419;0.481). And the best option would be:

b. .419 to .481

Step-by-step explanation:

We know the following info:

$n = 1000$ sample size selected

$X= 450$ represent the number of people who favored Candidate AT

The sample proportion would be:

$\hat p=\frac{450}{1000}=0.45$

The confidence interval would be given by this formula

$\hat p \pm z_{\alpha/2} \sqrt{\frac{\hat p(1-\hat p)}{n}}$

For the 95% confidence interval the value of $\alpha=1-0.95=0.05$ and $\alpha/2=0.025$ , with that value we can find the quantile required for the interval in the normal standard distribution.

$z_{\alpha/2}=1.96$

And replacing into the confidence interval formula we got:

$0.45 - 1.96 \sqrt{\frac{0.45(1-0.45)}{1000}}=0.419$

$0.45 + 1.96 \sqrt{\frac{0.45(1-0.45)}{1000}}=0.481$

And the 95% confidence interval would be given (0.419;0.481). And the best option would be:

b. .419 to .481

4 0

3 years ago

Is 2 - 2 + 5x; 5x equivalent

drek231 [11]

Answer:

Yes

Step-by-step explanation:

The First section of the equation (2-2) cancel each other out and you are left with 5x=5x

8 0

4 years ago

Read 2 more answers

Help I’ll mark brainliest -

laila [671]

Answer:

option 4th is the correct answer

8 0

3 years ago

Students in a cooking class made 4 1 2 quarts of soup. They served 4 5 of the soup to friends. Each serving is 3 5 quart. Hector

WINSTONCH [101]

The correct number of servings would be = 12/25

<h3>What is a cooking class?</h3>

A cooking class is defined as the class that is made up of students that are being thought how to prepare and serve different types of food.

The total amount of quarts of food made by the students = 4½.

The number of servings to friends = ⅘

The quantity of quarts in each serving = ⅗ quarts

Total number of quarts served = ⅘ × ⅗= 12/25

The correct number of servings = 12/25

Learn more about cooking here:

brainly.com/question/25308213

#SPJ1

3 0

1 year ago

Find the slope through the points (2,4) and (6,12)

jeyben [28]

Answer:

The slope is 2

Step-by-step explanation:

Slope = $\frac{rise(changeiny)}{run(changeinx)} =\frac{y2-y1}{x2-x1} =\frac{12-4}{6-2} =\frac{8}{4}$

8/4 reduces to 2/1 which makes the slope 2

8 0

3 years ago