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nikdorinn [45]
3 years ago
13

Find all solutions for a triangle with B = 36º. b = 19, and c = 30. Round to the nearest tenth.

Mathematics
1 answer:
mojhsa [17]3 years ago
7 0
1 because 1 is my favorite number and it’s good for guessing
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What is tan 30°?<br><br>30°<br>​
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Please solve this proportion with steps (I'm stuck)<br> (9x+6)/18= (20x+4)/3x
guapka [62]
\frac{9x+6}{18}=\frac{20x+4}{3x}

Cross multiply. Distribute...
3x(9x+6)=18(20x+4)\\27x^2+18x=360x+72\\27x^2-342x-72=0\\3x^2-38x-8=0

OH GOD IT'S A QUADRATIC
<em>(our equation is in ax² + bx + c = 0 form. a=3. b= -38. c= -8.
</em><em>plug these values into the quadratic formula and simplify.)</em>
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-(-38)\pm\sqrt{(-38)^2-4(3)(-8)}}{2(3)}=\frac{38\pm\sqrt{1444+96}}6\\\\\sqrt{1444+96}=\sqrt{1540}=\sqrt{4\times345}=2\sqrt{345}\\\\\frac{38\pm2\sqrt{345}}6=\boxed{x=\frac{19\pm\sqrt{345}}3}

Approximate values for x: -0.20714 or 12.874

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A catering company is catering a large wedding reception. The host of the reception has
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The answer is 47 pounds

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3. Calculate how many pounds of beef you can buy with the money left by dividing the money into the price for one pound.

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