All categories

3 years ago

The hypotenuse of a 45°-45°-90° triangle measures 128 cm.

Mathematics

1 answer:

wlad13 [49]3 years ago

4 0

Answer:

64cm

Step-by-step explanation:

A squared + B squared = C squared this is the formula, c is the hypotenuse, so A+B=128

64+64+128

idk

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3 years ago

What are the solutions of the equation (2x + 3)2 + 8(2x + 3) + 11 = 0

Tom [10]

Answer:

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Step-by-step explanation:

The given equation is

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Let us treat this as a quadratic equation in $(2x+3)$ .

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The solution is given by the quadratic formula;

$(2x+3)=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$

We substitute these values into the formula to obtain;

$(2x+3)=\frac{-8\pm \sqrt{8^2-4(1)(11)} }{2(1)}$

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$(2x+3)=\frac{-8\pm \sqrt{20} }{2}$

$(2x+3)=\frac{-8\pm2\sqrt{5} }{2}$

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4 years ago