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3 years ago

Please help! It would be greatly appreciated please tysm 20 points multiple questions

Mathematics

1 answer:

Firlakuza [10]3 years ago

7 0

Answer:

COD, BC, intersecting

Step-by-step explanation:

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Jillian and Dawn are playing a game of miniature golf. In this game, the score on a hole is the number of putts it takes to get

frozen [14]

Answer:

Step-by-step explanation:

Discussion

This should be answered with the mean. The lower the mean, the lower the score it took to get the mean. So B is the answer.

4 0

2 years ago

one linear expression is subtracted from a second linear expression and the difference is x-5. When is the difference when the s

sineoko [7]

The answer is 5× if is wrong sorry might help you

6 0

3 years ago

X/3-4=-7<br><br> please help me solve

Vanyuwa [196]

In order to solve this we need to get x by itself on one side.

We need o start by adding across the 4 so that we get:

x/3 = -7 + 4 = -3

We then need to multiply both sides by 3 to get a singular x:

x = -3 * 3 = -9

5 0

2 years ago

Read 2 more answers

An article regarding interracial dating and marriage recently appeared in the Washington Post. Of the 1,709 randomly selected ad

VMariaS [17]

Answer:

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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

For this problem, we have that:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that $n = 323, p = 0.86$

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:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 - 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8222$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 + 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8978$

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

5 0

3 years ago

The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at

Ahat [919]

Distance = r x t ===> t=d/r

Distance (after 2 hours driving @30mil/hr) = 2 x 30 = 60 Mil

To drive same distance (60) with r = 50, the time needed is 60/50 =1.2 hrs

8 0

3 years ago