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Dahasolnce [82]
3 years ago
10

Which of the following is the most appropriate unit to describe the rate at which water flows over Niagara Falls

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
7 0

Answer:

Billions gallons per day

Step-by-step explanation:

independent quantity is time in days and dependent quantity is volume of water in billion gallons is the one among the following that is the most appropriate unit to describe the rate at which water flows over Niagara Falls. The correct option among all the options that are given in the question is the third option or option "C".

Yuki888 [10]3 years ago
5 0

Answer:

the gallons per day, that is how they record the data now.

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Geometric? what does it mean and plz give a example
Debora [2.8K]

Answer:

of, relating to, or according to the methods or principles of geometry

increasing in a geometric progression.

the study of properties of given elements that remain invariant under specified transformations

explanation:

Hope this helps?

Please mark me as brainliest answerer?

I need it.

4 0
3 years ago
39.76 divided by 2.8
denpristay [2]

Answer:

14.2

Step-by-step explanation:

6 0
2 years ago
A function is shown below.<br><br> g(x)=19.60+1.74x<br><br> What is the value of g(30)?
Grace [21]

Answer:

g(30) = 71.8

Step-by-step explanation:

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5 0
3 years ago
An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 lb and
egoroff_w [7]

Answer:

a) P(140

P(0.036

P(0.036

b) P(140< \bar X

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:

X \sim N(139,28.1)  

Where \mu=139 and \sigma=28.1

We are interested on this probability

P(140

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(140

And we can find this probability like this:

P(0.036

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(0.036

Part b

For this case we select a sample size of n =32. Since the distribution for X is normal then the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu=139, \frac{\sigma}{\sqrt{n}}=\frac{28.1}{\sqrt{32}}=4.97)

And the new z score would be:

Z=\frac{\bar X -\mu}{\sigma_{\bar x}}

P(140< \bar X

P(140< \bar X

5 0
3 years ago
Amanda is building a fence. She needs a pole to measure 4 5\6 feet from the ground. How can she write it as a fraction.
aleksklad [387]
4 5/6 would be your answer then you figure out how to take away  the whole number

6 0
3 years ago
Read 2 more answers
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