2 years ago

Need help with math

Mathematics

1 answer:

podryga [215]2 years ago

4 0

I have no idea math should have been working hade books bye sorry

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4 7/12 + 2 1/12 what is the estimate answer

Pani-rosa [81]

$4 \frac{7}{12} = \frac{12*4+7}{12} = \frac{55}{12} \\ \\ 2 \frac{1}{12} = \frac{2*12+1}{12} = \frac{25}{12} \\ \\ \frac{55}{12} + \frac{25}{12} = \frac{80}{12} \\ \\ \frac{80 :4}{4:4} = \frac{20}{3}$

3 0

3 years ago

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Please help will highly appreciate it

labwork [276]

Answer:

so I think your trying to find what c is right

if that so.that will be 90° that is an right angle all right angles are 90° I might be wrong because I'm not sure on what your trying to find but I hope I helped just a Little bit

<h2> sorry </h2>

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3 years ago

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15 tan^3 x=5 tan x Find all solutions of the equation in the interval [0, 2π). (Enter your answers as a comma-separated list. If

ANTONII [103]

$\bf 15tan^3(x)=5tan(x)\implies 3tan^3(x)=tan(x)
\\\\\\
3tan^3(x)-tan(x)=0\implies tan(x)[3tan^2(x)-1]=0
\\\\\\
\begin{cases}
tan(x)=0\\\\
\measuredangle x=0,\pi \\
----------\\
3tan^2(x)-1=0\\
tan^2(x)=\frac{1}{3}\\
tan(x)=\pm\sqrt{\frac{1}{3}}\\\\
tan(x)=\pm\frac{1}{\sqrt{3}}\\\\
\measuredangle x=\frac{\pi }{6}, \frac{5\pi }{6},\frac{7\pi }{6}, \frac{11\pi }{6}
\end{cases}$