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4 years ago

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What are the solutions of the following system?

1 answer:

Andreyy894 years ago

3 0

X^2 + y^2 = 25
2x + y = -5.....y = -2x - 5

x^2 + (-2x - 5)^2 = 25
x^2 + (-2x - 5)(-2x - 5) = 25
x^2 + (4x^2 + 20x + 25) = 25
5x^2 + 20x + 25 = 25
5x^2 + 20x = 0
5x(x + 4) = 0

5x = 0 2(0) + y = -5
x = 0 y = -5

x + 4 = 0 2(-4) + y = -5
x = -4 -8 + y = -5
y = 3

solutions are : x = 0, y = -5.....and x = -4, y = 3

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3 years ago

On a recent day 8 euros were worth $9 and 24 euros were worth $27 write an equation of the form y equals kx to show the relation

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Step-by-step explanation:

Given that 8 euros were worth $9 and

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4 years ago

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Answer:

1/4 feet long should each pieces be.

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity of 1 such as 3 miles per second or 4 km per hour

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3 years ago

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True

Step-by-step explanation:

First, we need to recognize that

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Now, we can try to solve

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Another method to solve this would be graphing the function $y=csc(x)$

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