What is the missing angle for this or how do u do this pls add explanation!!!!!

Mrs smith wrote the following statement on the board “ a ray can be a part of a line” a Group of students were discussing the me

ivolga24 [154]

The answer is of the above

5 0

3 years ago

What is the length of segment BC?

vodomira [7]

The length is 10 because this is a right triangle and based on the pythagorean theorem, the sum of the squares of the legs equals the square of the longest side.

6 squared plus 8 squared is 100, which is 10 squared.

The answer is 10.

6 0

4 years ago

Read 2 more answers

There are approximately 8 billion ounces of a water left in a natural spring, and every

Sphinxa [80]

$1\ \text{billion}=1\times 10^9$

$1\ \text{million}=1\times 10^6$

Total amount of water left is

$8\ \text{billion ounces}\\ =8\times 10^9\ \text{ounces}\\ =(8\times 10^3)\times 10^6\ \text{ounces}\\ =8000\ \text{million ounces}$

Yearly consumption of water $13\ \text{million ounces}$

t = Years since 2018

The required function is in million ounces which is $V(t)=8000-13t$

Learn more:

brainly.com/question/24619379

brainly.com/question/20795275

7 0

3 years ago

A farmer has 250 ft of fencing and wants to enclose a rectangular area of 3750 ft². What dimensions should she use?

umka2103 [35]

Answer:

Longer side is 75 feet, shorter side is 50 feet.

Step-by-step explanation:

Let l be the length of the longer side and w be the length of the shorter side.

2l + 2w = 250, which simplifies to

l + w = 125. Solving for w, we have

w = 125 - l.

lw = l(125-l) = 3750

${l}^{2} - 125l - 3750 = 0$

$( l - 50)(l - 75) = 0$

l = 75, w = 50

6 0

2 years ago

Read 2 more answers

Gun ownership Concerned about recent incidence of gun violence, a public interest group conducts a poll of 850 randomly selected

denis23 [38]

Answer:

a.

The 95% confidence interval for the proportion of all American adults who have a gun in their home is (0.4066, 0.4734). This means that we are 95% sure that the true population proportions of American adults who have a gun in their home is between these two values.

b.

The confidence level is the probability of the confidence interval containing the population proportion.

Step-by-step explanation:

Question a:

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 $1 - \frac{\alpha}{2}$ .

Poll of 850 randomly selected American adults and finds that 44% of those surveyed have a gun in their home.

This means that $n = 850, \pi = 0.44$

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 $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.44 - 1.96\sqrt{\frac{0.44*0.56}{850}} = 0.4066$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.44 + 1.96\sqrt{\frac{0.44*0.56}{850}} = 0.4734$

The 95% confidence interval for the proportion of all American adults who have a gun in their home is (0.4066, 0.4734). This means that we are 95% sure that the true population proportions of American adults who have a gun in their home is between these two values.

b. Explain what is meant by 95% confidence in this context.

The confidence level is the probability of the confidence interval containing the population proportion.

5 0

3 years ago