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qwelly [4]
3 years ago
7

The circle at the right represents a planet. The radius of the planet is about 6300 km. Find the distance d to the horizon that

a person can see on a clear day from the following height h above the planet.
h=4 km

Mathematics
1 answer:
faust18 [17]3 years ago
3 0

Answer:

224.54 km

Step-by-step explanation:

A right triangle is formed, where h + r = 4 + 6300 = 6304 km is the hypotenuse, r = 6300 km is one leg and d is the other leg. By Pythagorean theorem:

6304² = 6300² + d²

d² = 6304² - 6300²

d = √50416

d = 224.54 km

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What is the linear equation for 3x+2y=62
scZoUnD [109]
<span>In this formula :

</span><span>y </span>tells us how far up the line goes
<span>x </span>tells us how far along
<span>m </span>is the Slope or Gradient i.e. how steep the line is
<span>b </span>is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the<span> line properties.</span><span> We shall now graph the line </span><span> 3x+2y-62  = 0</span><span> and calculate its properties
</span>

Notice that when x = 0 the value of y is 31/1 so this line "cuts" the y axis at y=31.00000

<span>  y-intercept = 62/2 = 31
</span>

When y = 0 the value of x is 62/3 Our line therefore "cuts" the x axis at x=20.66667

<span>  x-intercept = 62/3 = 20.66667

</span>

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 31.000 and for x=2.000, the value of y is 28.000. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 28.000 - 31.000 = -3.000 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

<span>  Slope = -3.000/2.000 = -1.500

</span><span>
1.Slope = -3.000/2.000 = -1.500 

2.x-intercept = 62/3 = 20.66667<span> 

3.y-intercept = 62/2 = 31


I got sources from a few websites so excuse if something is weird/wrong.  
</span></span>
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