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andreyandreev [35.5K]
3 years ago
12

Beginning at sunrise, the temperature rose 2.8 degrees per hour.

Mathematics
2 answers:
Dahasolnce [82]3 years ago
6 0
19.18 / 2.8 = 6.85

So answer is D.6.850 h
vichka [17]3 years ago
5 0

Temperature rose for 2.8 degrees = 1 hour

for temperature rose for 1 degree = 1/2.8 hour

Now, for 19.18 degrees, it would be = 1/2.8 * 19.18 = 6.850 h

D)OPTION D is your answer........

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Simplify <br>3x2 + x + 2x2​
jenyasd209 [6]

Answer:

10+ x

Step-by-step explanation:

Follow me please for answering the question

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3 years ago
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Chose 1 answer:<br> A. 5.4<br> B. 5-4<br> C. 4/5<br> D. 5/4
umka2103 [35]

Answer:

D. 5/4

Step-by-step explanation:

A. 5.4 can't be 'cause the shade did not reach 5 on number line.

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C. 4 / 5 = 0.8 can't be 'cause its less than the shade.

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8 0
3 years ago
5 / 3 + 43 / 9 what is the answer
Neporo4naja [7]

Answer:

58/9

Step-by-step explanation:

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The L.C.M would be 9

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7 0
2 years ago
A random sample of 864 births in a state included 426 boys. Construct a 95% confidence interval estimate of the proportion of bo
oksian1 [2.3K]

Using the z-distribution, it is found that the 95% confidence interval is (0.46, 0.526), and it does not provide strong evidence against that belief.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

We have that a random sample of 864 births in a state included 426 boys, hence the parameters are given by:

n = 864, \pi = \frac{426}{864} = 0.493

Then, the bounds of the interval are given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 - 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.46

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.493 + 1.96\sqrt{\frac{0.493(0.507)}{864}} = 0.526

The 95% confidence interval estimate of the proportion of boys in all births is (0.46, 0.526). Since the interval contains 0.506, it does not provide strong evidence against that belief.

More can be learned about the z-distribution at brainly.com/question/25890103

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2 years ago
What is the minimum number of 60 passenger buses needed to transport 200 students?
Marina86 [1]
You would need four busses
4 0
3 years ago
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