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Stella [2.4K]
2 years ago
10

A Japanese bullet train can travel at 300km /h how long will it take to cover a section of track 180 km in length

SAT
1 answer:
sweet [91]2 years ago
3 0

Answer:

36 minutes

Explanation:

If we assume that 180 is a fraction of 300, we can simplify it down to 18/30 and then further simplify it to 3/5 (by dividing both by the GCF, 6). It will take 3/5 of an hour for the train to travel 180 km (or 3/5 of the distance it can travel in one hour). 1/5 of an hour is equal to 12 minutes. Therefore 3/5 of an hour is 36 minutes.

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Many countries use gdp per capita to compare the - in
morpeh [17]

Answer:

Many countries use GDP per capita to compare the quality of life in different countries.

Explanation:

GDP per capita is gross domestic product divided by the number of inhabitants of a country. GDP is the sum of all goods in a country, and the higher the GDP, the more it demonstrates how developed that country is, and can be classified among poor, rich or developing countries.

Per capita GDP is used as an indicator of a country's quality of life, because the richer the country is, the more its citizens benefit. For this reason, we can conclude that many countries use per capita GDP to compare the quality of life of different countries.

6 0
2 years ago
The Richter magnitude of an earthquake is determined from the _____.
jek_recluse [69]

measurement of the amplitude of the largest seismic waves

For Gradpoint :)

7 0
3 years ago
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All of the following are important to highlight when writing a cover letter except A your qualineatione B. your accomplishment c
Maru [420]

Answer:

It's C The Name of your high school

Explanation:

took the test

7 0
3 years ago
At an ocean depth of 20 meters, a buoy bobs up and then down 2 meters from the ocean's depth. Four seconds pass from the time th
stiv31 [10]

The first and second coordinate points of the sine graph are;

(0, 20) and (2, 22)

<h3>Sine Graph expression</h3>

The general formula we will use to plot the graph is;

y = [Asin (2πx/t)] + ∅      (Note that sin is in radians)

where;

A is amplitude

t is period

∅ is phase shift

We are told that the buoy bobs up and then down 2 meters from the ocean's depth. This means that;

Amplitude; A = 2

Now, Four seconds pass from the time the buoy is at its highest point to when it is at its lowest point. Thus;

Period = 2 * 4 = 8 seconds

Assume at x = 0, the buoy is at normal ocean depth. Thus;

Phase shift; ∅ = 20

Thus, we have;

y = [2sin((2πx/8)] + 20  

At x = 0, we have;

y = [2sin((2π*0/8)] + 20  

y = 0 + 20

y = 20

Thus, first point is; (0, 20)

Since the second point must be a maximum or minimum value on the graph closest to the first point, then we put 2 for x to get the coordinate of the second point;

y = [2sin((2π*2/8)] + 20  

y = [2sin((2π*2/8)] + 20  

y = [2sin(π/2)] + 20  

In radians, sin(π/2) = 1. Thus;

y = (2 * 1) + 20

y = 22

Second point is (2, 22)

Using the first and second point coordinates, we will use sine tool to graph the function as attached below.

Read more about sine graph at; brainly.com/question/18055768

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2 years ago
A __ is a college to which you have a less than 50% chance of being admitted
SVEN [57.7K]

A Reach College is a college to which you have a less than 50% chance of being admitted

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3 years ago
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