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Alexxandr [17]
4 years ago
12

Find AC for question two

Mathematics
1 answer:
Alex777 [14]4 years ago
7 0

Answer:

AC = 5

Step-by-step explanation:

AC is the diagonal of the rectangle ABCD and splits the rectangle into 2 right triangles.

Using right triangle ABC with hypotenuse AC

Applying Pythagoras' theorem gives

AC² = AB² + BC² ← substitute given values

AC² = 4² + 3² = 16 + 9 = 25

Take the square root of both sides

AC = \sqrt{25} = 5

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Step-by-step explanation:

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3 years ago
Solve the system of equations: y= x^2 + 2x - 3 and y=3x+ 3.
Semenov [28]

Answer:

(-2, -3)

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Step-by-step explanation:

To solve this, we're gonna get rid of the y's with substitution

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x² + 2x - 3 = 3x + 3

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Subtract 3x from both sides

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Factor the equation

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Let's solve it with -2 first, plug the new x in y = 3x + 3

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Do the same for x = 3

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3 0
2 years ago
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qwelly [4]

Answer:

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Step-by-step explanation:

The pythagoras theorem :

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2 years ago
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Hope this helps!


5 0
3 years ago
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