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frez [133]
2 years ago
14

The interior angles formed by the sides of a quadrilateral have measures that sum to 360°.

Mathematics
2 answers:
lidiya [134]2 years ago
6 0
2x+2x+124+124 = 360
4x+248 = 360
4x = 360 - 248
4x = 112
x = 112/4
x = 28

answer x = 28
Svetach [21]2 years ago
4 0

Let

angle 1=2x°

angle 2=2x°

angle 3=124°

angle 4=124°


we know that

The interior angles formed by the sides of a quadrilateral have measures that sum to 360°

so

angle 1+angle 2+angle 3+angle 4=360°

2x+2x+124+124=360\\ 4x+248=360\\ 4x=112\\ x=28degrees

therefore


the answer is

x=28degrees

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A particular isotope has a​ half-life of 74 days. If you start with 1 kilogram of this​ isotope, how much will remain after 150
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\bf \stackrel{300~days}{\textit{Amount for Exponential Decay using Half-Life}} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &1\\ t=\textit{elapsed time}\dotfill &300\\ h=\textit{half-life}\dotfill &74 \end{cases} \\\\\\ A=1\left( \frac{1}{2} \right)^{\frac{300}{74}}\implies A=1\left( \frac{1}{2} \right)^{\frac{150}{37}}\implies \boxed{A\approx 0.060202}

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Answer:

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Step-by-step explanation:

We know that x = 10.

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This could be really trivial, remember that x = 10.

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