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kolbaska11 [484]
3 years ago
6

The Price of kiwis can be deterrent by the equation P=1.15n where p is the price and n is the number of kiwis. What is the const

ant of proportionality (unit rate)?
Mathematics
1 answer:
Travka [436]3 years ago
7 0

Answer:

1.15

Step-by-step explanation:

P/n = 1.15

Price is 1.15 per kiwi

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Answer:

  about 44.5 feet

Step-by-step explanation:

We can write relations for the height of the rail as a function of initial length and expanded length, but the solution cannot be found algebraically. A graphical solution or iterative solution is possible.

Referring to the figure in the second attachment, we can write a relation between the angle value α and the height of the circular arc as ...

  h = c·tan(α) . . . . . . where c = half the initial rail length

Then the length of the expanded rail is ...

  s = r(2α) = (c/sin(2α)(2α) . . . . . . where s = half the expanded rail length

Rearranging this last equation, we have ...

  sin(2α)/(2α) = c/s

It is this equation that must be solved iteratively. We find the solution to be ...

  α ≈ 0.0168538794049 radians

So, the height of the circular arc is ...

  h = 2640.5·tan(0.0168538794049) ≈ 44.4984550191 . . . feet

The rail will bow upward by about 44.5 feet.

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<em>Additional comments</em>

Note that s and c in the diagram are half the lengths of the arc and the chord, respectively. The ratio of half-lengths is the same as the ratio of full lengths: c/s = 2640/2640.5 = 5280/5281.

We don't know the precise shape the arc will take, but we suspect is is not a circular arc. It seems likely to be a catenary, or something similar.

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We used Newton's method iteration to refine the estimate of the angle from that shown on the graph. The iterator used is x' = x -f(x)/f'(x), where x' is the next guess based on the previous guess of x. Only a few iterations are required obtain an angle value to full calculator precision.

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3 years ago
Sebastian and Mia want to buy a home valued at $250,000. The property tax for this location is 1%. Based on the current value of
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Answer:

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Step-by-step explanation:

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Select True or False to correctly classify each inequality.
Ksivusya [100]
<h2><u><em>Answer:</em></u></h2>

<u><em>1. FALSE</em></u>

<u><em>2. TRUE</em></u>

<u><em>3. FALSE</em></u>

<u><em>4. TRUE</em></u>

<h2>Step-by-step explanation:</h2>

<em>6≤-6 = False</em>

<em>-3<3 = True</em>

<em>2.9>2.9 = False</em>

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<em>I Hope That This Helps You GOOD LUCK</em>

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