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2 years ago

Explain why each of the following names does or does not seem like a good variable name to represent a state sales tax rate.

1 answer:

7 0

a. stateTaxRate - A good variable name because it represents what it holds, the state sales tax rate, without being too wordy. Also correctly capitalized in camelcase.

b. txRt - A bad variable name because while short and simple, it is too hard to understand what the variable represents.

c. t - A very bad variable name if you plan on using the variable often. Far too short and you will forget what it represents and is needed for.

d. stateSalesTaxRateValue - A bad variable name because it is just too wordy. Cutting it down to A's variable name is much more reasonable

e. state tax rate - A bad variable name and probably invalid because it has spaces in the name.

f. taxRate - A good variable name if there are no other tax calculations other than state tax rate. Otherwise you would confuse state vs local tax rate or something, making it a bad variable name.

g. 1TaxRate - A bad variable name because the number 1 has no reason being in the variable name. It doesn't add anything to the name.

h. moneyCharged - A bad variable name because it is not specific enough in explaining why the money is being charged and what for.

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Given three dictionaries, associated with the variables, canadian_capitals, mexican_capitals, and us_capitals, that map province

Nookie1986 [14]

Answer:

The Python code to combine the three dictionaries are is given as follows:

canadian_capital = {
cash: "SOME VALUES",
assets: "SOME VALUES"
}
mexican_capital = {
cash: "SOME VALUES",
assets: "SOME VALUES"
}
us_capital = {
cash: "SOME VALUES",
assets: "SOME VALUES"
}
nafta_capital = {
canadian: canadian_capital,
mexican : mexican_capital,
us: us_capital
}

Explanation:

Line 1 - 14 :

Create three Python dictionaries and name them as canadian_capitals, mexican_capital and us_capitals. Please note a Python dictionaries should be enclosed in curly braces { }.

We just define two samples of relevant keys (cash and asset) in each of the dictionaries. Python dictionary can map a key to a value.

Since we are not given any capital values from the question, a dummy string "SOME VALUES" is tentatively set as the value for each of the keys.

In practice, we should replace those dummy strings with the real values of capital. The values can be a number, a string, a list and even a nested dictionary.

Line 16 - 20 :

Create one more Python dictionary and name it as nafta_capital.

Since our aim is to combine the three previous dictionaries (canadian_capitals, mexican_capital and us_capitals) and associate it with nafta_capital, we can define three different keys (canadian, mexican and us) in our dictionary nafta_capital.

As mentioned, a value associated with a key can be a nested dictionary. Hence, we just map canadian_capitals, mexican_capital and us_capitals as the value of the keys (canadian, mexican and us) in dictionary nafta_capital, respectively,

By doing so, we have managed to combine three target dictionaries (canadian_capitals, mexican_capital and us_capitals ) into a single dictionary, nafta_capital.

4 0

2 years ago

Which 2 problems does the Pay down credit card workflow solve for clients? (Select all that apply) It helps clients stay on top

Anna11 [10]

Answer:

B. It ensures that payments to credit card accounts are categorized correctly

D. It uses language that non-accountants can understand

Explanation:

Pay down credit card workflow is a new feature that makes entering records in QuickBooks easier for users. The two prime benefits of this workflow are;

1. It ensures that payments to credit card accounts are well categorized well. Without this feature, users most times find it difficult to enter records correctly or they tend to duplicate entries. This new feature obtains vital information that helps the software to correctly credit the accounts.

2. It uses language that non-accountants can understand. This simplifies the process and makes it easier for the user to enter the right data that would help the software to correctly credit the accounts.

3 0

2 years ago

Consider a single-platter disk with the following parameters: rotation speed: 7200 rpm; number of tracks on one side ofplatter:

horsena [70]

Answer:

Given Data:

Rotation Speed = 7200 rpm

No. of tracks on one side of platter = 30000

No. of sectors per track = 600

Seek time for every 100 track traversed = 1 ms

To find:

Average Seek Time.

Average Rotational Latency.

Transfer time for a sector.

Total Average time to satisfy a request.

Explanation:

a) As given, the disk head starts at track 0. At this point the seek time is 0.

Seek time is time to traverse from 0 to 29999 tracks (it makes 30000)

Average Seek Time is the time taken by the head to move from one track to another/2

29999 / 2 = 14999.5 ms

As the seek time is one ms for every hundred tracks traversed. So the seek time for 29,999 tracks traversed is

14999.5 / 100 = 149.995 ms

b) The rotations per minute are 7200

1 min = 60 sec

7200 / 60 = 120 rotations / sec

Rotational delay is the inverses of this. So

1 / 120 = 0.00833 sec

= 0.00833 * 100

= 0.833 ms

So there is 1 rotation is at every 0.833 ms

Average Rotational latency is one half the amount of time taken by disk to make one revolution or complete 1 rotation.

So average rotational latency is: 1 / 2r

8.333 / 2 = 4.165 ms

c) No. of sectors per track = 600

Time for one disk rotation = 0.833 ms

So transfer time for a sector is: one disk revolution time / number of sectors

8.333 / 600 = 0.01388 ms = 13.88 μs

d) Total average time to satisfy a request is calculated as :

Average seek time + Average rotational latency + Transfer time for a sector

= 149.99 ms + 4.165 ms + 0.01388 ms

= 154.168 ms

4 0

2 years ago

3. Megan and her brother Marco have a side business where they shop at flea markets, garage sales, and estate

Neko [114]

Answer:

Explanation:

Megan doesn't have a registered business. She can't claim insurance

4 0

2 years ago

Which of the following attributes of a website indicates a more reliable source for information?

scoundrel [369]

An attribute of a website that will indicate a more reliable source of information is when the site ends in ".edu". It is a top-level domain for education. It would mean that this particular site is linked to universities, colleges or other educational sites thus it gives more information that is real and factual.

3 0

2 years ago