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TiliK225 [7]
2 years ago
15

There are seven roads that lead to the top of a hill. How many different ways are there to reach the top and come back ( you don

t have to go on the same road there and back)?
Mathematics
1 answer:
Setler [38]2 years ago
8 0

Answer:

49 different ways

Step-by-step explanation:

If there are seven roads that lead to the top, you have seven possible choices to go to the top of the hill.

Then, to come back to the start, you also have seven possible choices (seven roads), and you can pick any road.

So, if you have seven ways to go up and seven ways to go down, the number of different ways of going to the top and coming back is the product of these numbers of possible choices.

N(total) = N(up) * N(down)

N(total) = 7 * 7

N(total) = 49 different ways

Brainliest pls and tysm!

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Answer:

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Step-by-step explanation:

We have the following equation

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To transform the given equation in the general equation of a circumference we must use the method of square completions

Step 1

(x^2 - 4x) + (y^2 + 8y) = -4

<u>Step 2</u>

<u> </u>Add and subtract (\frac{b}{2})^2 For an equation of the form

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<u>Step 3  </u> Factor the expressions within the parentheses

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<u>Step 4 Simplify</u>

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Finally

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