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igor_vitrenko [27]
2 years ago
8

Each bottle of perfume contains 2.1 fluid ounces of perfume. The store sells 30 bottles. How many fluid ounces of perfume did th

e store sell in total
Mathematics
2 answers:
arsen [322]2 years ago
8 0

Answer:

63

Step-by-step explanation:

pashok25 [27]2 years ago
5 0

Answer:

Step-by-step explanation:so did u pass the edulastic test

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Whats 1.02 as a fraction
kompoz [17]
51/50

1 1/50

Hope this helps
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3 years ago
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The sum of two-sevenths of a number and 3 is 9. Can you please write out into an equation>~
serg [7]

Answer:

2/7x +3=9

x=21

Step-by-step explanation:

Let the unknown be x.

Take 3 to the other side so: 2/7 multiplied by x= 6

Divide 6 by 2/7 to get the answer;

Therefore x=21

Sub back into equation to check answer.

4 0
3 years ago
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Evaluate: 36/x - 5 X=4
laiz [17]

Answer:

the answer is four

Step-by-step explanation:

Because first you do 36/4 which gets you to 9 and then subtract it by 5 to get 4!

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2 years ago
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The measure of angel A is 55° and is complementary to the measure of angle B. If the measure or angle B is X , what is the value
PSYCHO15rus [73]

Answer:

45 or least

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7 0
3 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

4 0
2 years ago
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