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Elodia [21]
2 years ago
5

(x+4)+(x+7)=81

Mathematics
1 answer:
klemol [59]2 years ago
6 0

In this article, I will show you how to find the area of a circle and express your answer in terms of pi (π). First, you'll need to familiarize yourself with the formula for calculating the area of a circle:

A = π * r²

Let's define our variables:

A: area of the circle

π: pi (a mathematical constant that is approximately equal to 3.141492 . . .)

r: radius of the circle (the distance from the circle's center point to its edge)

Typically, to find the area of a circle, we would simply plug in the circle's radius for r and 3.141592 for π. If so, our answer would be a number.

Therefore, the answer is 16π.

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Answer:

infinite number of solutions

Step-by-step explanation:

y = 4x - 11 → (1)

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Substitute y = 4x - 11 into (2)

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4x - 4x + 11 = 11 ( subtract 11 from both sides )

0 = 0 ← true statement

This indicates the system has an infinite number of solutions

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