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Wewaii [24]
2 years ago
10

What are the coordinates of the vertex of the table? Is it a minimum or a maximum?

Mathematics
1 answer:
Aleksandr [31]2 years ago
8 0
B.(-2,-3);maximum. that is the answer
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You randomly choose one marble from the jar. Find the theoretical probability of the event.
zysi [14]

Answer:

1. 33%

2. 16%

3. 50%

Step-by-step explanation:

4 0
2 years ago
A recent study asked U. S. Adults to name 10 historic events that occurred during their lifetime that have had the greatest impa
Nadusha1986 [10]

Using the z-distribution, as we are working with a proportion, it is found that the 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, the parameters are:

z = 2.575, n = 2000, \pi = 0.77

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 - 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7458

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 + 2.575\sqrt{\frac{0.77(0.23)}{2000}} = 0.7942

The 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

More can be learned about the z-distribution at brainly.com/question/25890103

7 0
2 years ago
Write an Equation to show how angles are are related
dusya [7]

Hello,

Answer is <em>Alternate </em><em>interior </em><em>angles,</em><em> </em><em>as </em><em>they </em><em>lie </em><em>on </em><em>same </em><em>line </em><em>but </em><em>in </em><em>opposite </em><em>direction.</em><em>.</em><em>.</em>

<em>Hope</em><em> it</em><em> helps</em><em> you</em><em>.</em><em>.</em><em> </em><em>Pls</em><em> mark</em><em> brainliest</em>

8 0
3 years ago
Express the recurring decimal 0.042 as a fraction in its simplest form.
rodikova [14]

Answer:

7/165

Step-by-step explanation:

This is a mixed recurring decimal (the zero is not repeating)

We take number after the decimal point     042

then we subtract  the non repeating.In this case is 0 so we not subtract anything

This will be the numerator  42

Now ,the denominator:

For each repeating decimal we write a 9 (in this case 2 nines)

For each non repeating decimal we write a zero

Denominator is 990

42/990  =  7/165

7:165 = 0.0424242......

5 0
3 years ago
Simplify the expression below using the distributive property
Rus_ich [418]

Answer:

-84-12i

Step-by-step explanation:

The one you have is the answer :)

3 0
2 years ago
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