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pogonyaev
2 years ago
7

A stream is flowing down a slope into a larger river. The elevation of the head of the stream is 2,200 feet above sea level. The

elevation of the mouth of the stream is 1,000 feet. The horizontal distance along the stream between those two points is 63,360 feet. What is the gradient of the slope the stream is flowing over in ft/mi
Mathematics
1 answer:
Trava [24]2 years ago
7 0

Answer:

100\ \text{ft/mi}

Step-by-step explanation:

Elevation of the head of the stream is 2,200 feet above sea level

Elevation of the mouth of the stream is 1,000 feet

Rise = 2200-1000=1200\ \text{ft}

Distance between the two points = 63360\ \text{ft}=\dfrac{63360}{5280}=12\ \text{mi} = Run

Gradient is given by

\dfrac{\text{Rise}}{\text{Run}}=\dfrac{1200}{12}\\ =100\ \text{ft/mi}

The gradient of the slope the stream is flowing over is 100\ \text{ft/mi}.

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Answer:

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Step-by-step explanation:

We have this function and let's derive it in terms of x.

y =x^2/In x

Dy/Dx=(x^2/In x)'=2/lnx *(x^2)'-(x^2/In x)'=> 2 x *ln ( x ) − x *ln ^2 ( x ) =x ( 2 ln ( x ) − 1 )/ ln ^2 ( x)

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3 years ago
Stan had 15 apples and gave 10 to his sister. If he had 21 apples and wanted to give the same percentage to his sister, how many
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2 years ago
The average of eight numbers is 56. When one of the numbers was left out, the mean decreased to 54. What number was left out?
Alexandra [31]

The number that was left out is 70.

<h3>What is the number that was left out?</h3>

Average is the sum of a set of numbers divided by the total numbers in the data set.

Average = sum of numbers / total numbers

  • Sum of numbers when there are 8 numbers = 56 x 8 = 448
  • Sum of numbers when there are 7 numbers = 54 x 7 = 378
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To learn more about average, please check: brainly.com/question/25842202

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1 year ago
Answer will get the brainliest
tia_tia [17]
I agree with him that’s the answer
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3 years ago
The probability distribution for a random variable x is given in the table. -5 -3 -2 0 2 3 Probability .17 .13 33 16 11 10 Find
IgorLugansk [536]

Answer:

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Step-by-step explanation:

add up the probability that is less than or equal to  0, which is 0.17+0.13+0.33+0.16 = 0.79

5 0
2 years ago
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