What is 7/6-6/7 i need to know pls

r-ruslan [8.4K]

Answer:

B. Not enough information.

Step-by-step explanation:

We are given that all three angles of ∆DEF is congruent to all the three corresponding angles of ∆XYZ. However, this is is not enough to prove that they are both congruent to each other. There's no information about any of tge side length.

AAA is not a criterion that proves two triangles are congruent.

Therefore, we will conclude that there is not enough information.

3 0

3 years ago

If 4 friends have 8 apples how many will each friend get

Natalka [10]

2 because 8 divided by 4 is 2.

6 0

3 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

The measure of two supplementary angles are in the ratio 4:11 what is the measure of the larger angle

vichka [17]

The answer of larger angle is 132 degree

8 0

3 years ago

In a pet shop, there are 15 kittens and 20 puppies. 25 of the kittens and puppies have beige fur. Ten of these beige fur animals

nadya68 [22]

This is the theory of probability. We are required to calculate the probability that an animal picked at random is a beige fur kitten given that there are 15 kittens and 20 puppies and the number of beige fur kittens and puppies is 25.
P(picking a kitten)=(number of kittens)/(total number of animals)
=15/35
=3/7
probability of an animal being beige fur is;
25/35
=5/7
The probability that the kitten selected is a beige fur will be:
3/7*5/7
= 15/49

8 0

4 years ago