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pogonyaev
3 years ago
13

A hot air balloon rises straight up 500 feet, then catches a breeze and is blown west 1,000 feet. How far is the balloon from th

e point of liftoff?

Mathematics
2 answers:
Ann [662]3 years ago
8 0
Would it still be one thousand feet?
Because the 500 shouldn't matter
If it does then it's 1500
Ipatiy [6.2K]3 years ago
5 0

Answer:

Distance between balloon and point of liftoff is 1118 feet.

Step-by-step explanation:

A hot air balloon rises straight up 500 feet. It catches a breeze and is blown west 1000 feet.

Since this phenomenon is three dimensional but I have drawn it in 2 dimensions.

So distance between balloon and the liftoff point will be

x² = 1000² + 500²

x^{2}=10^{6}+0.25(10)^{6}

             = 1.25(10)^{6}

x = \sqrt{1.25(10)^{6} }

  = 1.118×1000

  = 1118 feet

Therefore, distance between balloon from the point of liftoff is 1118 feet

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3 years ago
Scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100. What perce
Alla [95]

Answer:

The percentage is P(350 <  X  650 ) = 86.6\%

Step-by-step explanation:

From the question we are told that

   The population mean is  \mu  =  500

     The standard deviation is  \sigma  =  100

The  percent of people who write this exam obtain scores between 350 and 650    

    P(350 <  X  650 ) =  P(\frac{ 350 -  500}{ 100}

Generally  

               \frac{X -  \mu }{\sigma }  =  Z (The \  standardized \  value \ of  \  X )

   P(350 <  X  650 ) =  P(\frac{ 350 -  500}{ 100}

   P(350 <  X  650 ) =  P(-1.5

   P(350 <  X  650 ) =  P(Z < 1.5) -  P(Z <  -1.5)

From the z-table  P(Z <  -1.5 )  =  0.066807

   and P(Z < 1.5  ) =  0.93319

=>    P(350 <  X  650 ) =  0.93319 -  0.066807

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3 0
3 years ago
Choose the correct equation for the line shown on the graph?
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<u>Answer:</u>

y=-1/4x-1

<u>How to find the </u><u>slope</u>

To find the slope of the line you need to do the change in y/change in x. This is also known as the rise/run. To do this you count the spaces in between the two points.

In this graph the change in y (rise) is 2. The change in x (run) is 8. Since the line is going down they are negative. The rise/run is -2/8. This can be simplified to -1/4.

Slope: -1/4x

<u>How to find the y-intercept</u>

To find the y-intercept, you need to look at where the line crosses y.

In this graph the line crosses y at -1.

Y-intercept: -1

<u>Final</u><u> </u><u>equation</u><u>:</u><u> </u><u>-</u><u>1</u><u>/</u><u>4x-1</u>

3 0
2 years ago
What is 36j + j<br><br> please help and explain if you can!!! :)
Norma-Jean [14]
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Explanation.
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The sum will then be 36 apples + apple = 37 apples.
Replacing the word (in this explanation 'apple') by a letter learns us 36a + a = 37a

Hence 36j + j = 37j
8 0
3 years ago
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