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dezoksy [38]
3 years ago
10

1 point

Mathematics
2 answers:
Aliun [14]3 years ago
7 0

Answer:

B

Step-by-step explanation:

0.4 x 16.8 or 40% off of 16.80 is 12

dlinn [17]3 years ago
3 0
16.80 I think, please let me know if I got it wrong
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What is the slope of the line that passes through (-2,7) and (4, 9)?
fredd [130]

Answer:

Step-by-step explanation:

(9 - 7)/(4 + 2) = 2/6 = 1/3 is the slope of the line

4 0
3 years ago
2.50=?%...............................
k0ka [10]
2.50 would be 25% out of 100%
4 0
3 years ago
Which ratio is equivalent to 5:4? A.10:12 B.14:13 C.20:16 D.24:30
kupik [55]

Answer:

C. 20:16

Step-by-step explanation:

For this question, you have to multiply any integers to make it as ratio that on the answer choices. When you multiply 1 on 5:4, it will be 5:4. If you multiply by 2, it would be 10:8. When you continue to multiply, when you multiply by 4, you get 20:16 which is answer choice C.

6 0
4 years ago
Suppose it is known that 8 out of the 20 teams in the sample had a season winning percentage better than 0.500.
Ganezh [65]

Answer:

The 95% confidence interval for the true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).

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 interval 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:

8 out of the 20 teams in the sample had a season winning percentage better than 0.500. This means that n = 20, \pi = \frac{8}{20} = 0.4.

95% confidence interval

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}} = 0.4 - 1.96\sqrt{\frac{0.6*0.4}{20}} = 0.1853

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4 + 1.96\sqrt{\frac{0.6*0.4}{20}} = 0.6147

The 95% confidence interval for the true proportion of all teams that had a season winning percentage better than 0.500 is (0.1853, 0.6147).

3 0
4 years ago
Which describes the calculations that could be used to solve this problem?
ankoles [38]
The answer TO THE QUESTION WILL BE D
7 0
3 years ago
Read 2 more answers
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