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2 years ago

If an inscribed angle intercepts a diameter then it is a ___ angle

Mathematics

1 answer:

vova2212 [387]2 years ago

8 0

Answer:

the correct answer is Dipole-dipole interactions are the strongest intermolecular force of attraction.

Step-by-step explanation:

hope this helps

plz mark brainliest

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Miguel is playing a game in which a box contains four chips with numbers written on them. Two of the chips have the number 1, on

jolli1 [7]

Answer:

See explanation

Step-by-step explanation:

Miguel wins $2 is if he pulls two chips with the number 1.

<u>Probability of winning is: </u>

2/4 * 1/3 = 1/6 as there are 4 chips in total

<u> Probability of loosing is:</u>

1- 1/6 = 5/6

<u>Missing values we found in the step 1, can be populated in the table:</u>

Xi === 2 === -1
P(Xi) === 1/6 === 5/6

<u>Expected Value as per table data:</u>

1/6*2 + 5/6*(-1) = -1/2

Expected value is $1/2 loss each time he plays

To make the game fair, the expected value should be zero.

<u>Then as per the calculation above, let's replace 2, with x, and find its value.</u>

1/6x + 5/6*(-1) = 0
1/6x = 5/6
x= 5

So the amount should be $5 to make the game fair.

6 0

2 years ago

the number of yards a football team moves on the field can be represented |8| + |-4|. how many yards does the football team move

hichkok12 [17]

12 yards is how many they would run.

5 0

3 years ago

Read 2 more answers

A researcher wants to estimate the percentage of all adults that have used the Internet to seek pre-purchase information in the

Lubov Fominskaja [6]

Answer:

The required sample size for the new study is 801.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

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

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

25% of all adults had used the Internet for such a purpose

This means that $\pi = 0.25$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

What is the required sample size for the new study?

This is n for which M = 0.03. So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = 1.96\sqrt{\frac{0.25*0.75)}{n}}$

$0.03\sqrt{n} = 1.96\sqrt{0.25*0.75}$

$\sqrt{n} = \frac{1.96\sqrt{0.25*0.75}}{0.03}$

$(\sqrt{n})^2 = (\frac{1.96\sqrt{0.25*0.75}}{0.03})^2$

$n = 800.3$

Rounding up:

The required sample size for the new study is 801.

4 0

2 years ago

List the integers that satisfy both these inequalities, 2x+9 -12

Flura [38]

Answer:

x < -10.5

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 <-12

Subtract 9 from both sides;

2x +9 - 9 < -12-9

2x < -21

x < -21/2

x < -10.5

<em>Hence all the integers are values of x less than 10.5</em>

4 0

2 years ago

An astronaut who weighs 174 lb on Earth weighs 29 lb on the moon. Which of the following are correct amounts for weight on Earth

Korolek [52]

174/29 = 6 times the difference

17*6 = 102

12*6= 72

34*6 =204

15*6 = 90

so the answer is A

5 0

3 years ago

Read 2 more answers