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LenaWriter [7]
3 years ago
13

There are two formulae you can use to calculate the number of apple trees and the number of conifer

Mathematics
1 answer:
Leno4ka [110]3 years ago
5 0

9514 1404 393

Answer:

  n = 8

Step-by-step explanation:

"By inspection" is an appropriate method.

We are asked to compare the expressions

  n·n

  8·n

and find the value(s) of n that makes them equal. <em>By inspection</em>, we see that n=8 will make these expressions equal. We also know that both expressions will be zero when n=0.

__

More formally, we could write ...

  n^2 = 8n . . . . the two formulas give the same value

  n^2 -8n = 0 . . . . rearrange to standard form

  n(n -8) = 0 . . . . . factor

Using the zero product rule, we know the solutions will be the values of n that make the factors zero. Those values are ...

  n = 0 . . . . . makes the factor n = 0

  n = 8 . . . . . makes the factor (n-8) = 0

Generally, we're not interested in "trivial" solutions (n=0), so the only value of n that is of interest is n = 8.

__

A lot of times, I find a graphing calculator to be a quick and easy way to find function argument values that make expressions equal.

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Answer:

a.

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2 years ago
Scott is four more than double the age of Todd. Scott is 56. What is Todd's age?
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Answer: 26 years old

Step-by-step explanation:

Since Scott is four more than double the age of Todd, start by taking away four from Scott's age.

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2 years ago
Acellus<br> Find the perimeter of this triangle.<br> 7 ft<br> 8 ft<br> 9 ft<br> P = [?] ft<br> Enter
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can't you do it by yourself

Step-by-step explanation:

go away

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