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tankabanditka [31]
2 years ago
13

Why do we need to know the different abbreviation of measurements and its equivalent?

Mathematics
1 answer:
valentinak56 [21]2 years ago
7 0

Answer:

See explanation.

Step-by-step explanation:

You will need to know the abbreviations of measurements because when pertaining to the real world, an you will see things as so "This fence is about 15ft tall." or "Jacobb is 72in tall."  If you do not understand the abbreviations you will not understand what anyone is ever talking about when it comes to measurements. As for knowing how to convert measures to be equivalent, that is important because some measurements are bigger than others. It doesn't make since to say 12 inches, when you can just say 1 foot.

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The area of a field can be expressed as A = 2x + 6 / x + 1 square yards. If the length is
Dafna1 [17]

Answer:

The width of the field is 4x + 20 / x² -2x -3 yards

Step-by-step explanation:

The area of a rectangular field is given by the following formula:

area = length*width

In this case we want to find the width of this field, therefore if we isolate the width in the expression above we will have a suitable expression:

width*length = area

width = area / length

So applying the data from the problem, we have:

width = [(2x + 6)/(x + 1)] / [(x² - 9)/(2x + 10)]

width = [(2x + 6)/(x + 1)]*[(2x + 10)/(x² - 9)]

width = 2(x + 3)*(2x + 10) / (x+1)*(x - 3)*(x + 3)

width = 2*(2x + 10) / (x + 1)*(x - 3)

width = 4x + 20 / x² -2x -3

5 0
3 years ago
Suppose we take two different random samples from the same population of test scores. The population mean and standard deviation
Leto [7]

Answer:

The 95% confidence interval obtained with a sample size of 64 will give greater precision.            

Step-by-step explanation:

We are given the following in the question:

A 95% confidence interval is calculated with the following sample sizes

n_1 = 25\\n_2 = 64

The population mean and standard deviation are unknown.

Effect of sample size on confidence interval:

  • As the sample size increases the margin of error decreases.
  • As the margin of error decreases the width of the confidence level decreases.
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If we want a confidence interval with greater precision that is smaller width, we have to choose the higher sample size.

Thus, the 95% confidence interval obtained with a sample size of 64 will give greater precision.

3 0
3 years ago
Amanda lives in Fairbanks Alaska she records the low temperature for five days, which days low temperature was 9c colder than th
Brrunno [24]

Answer: all of them they are negitive numbers

Step-by-step explanation:

3 0
3 years ago
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Stefania has a collection 1432 mp3s. Of those songs, 25% are rock songs and 55% are rap songs. How many songs are other types of
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7 0
3 years ago
Aha please help!!!!! im a bit confused lol
Stels [109]

Answer:

e : g = 2 : 7

Step-by-step explanation:

e/f = 3/7

e = 3f/7

f/g = 2/3

g = 3f/2

e/g = (3f/7)/(3f/2) = 2/7

3 0
3 years ago
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