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Mathematics

2 answers:

Luden [163]3 years ago

4 0

I think it is D because I think one of the points is -2,2 and when you do some calculations with the math you get this answer. ..I'm not sure how I can show you my working out...hope I helped.

Dima020 [189]3 years ago

3 0

C because 2 and the line up would = 2 and -2

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6 less than one eighth of y is x

faltersainse [42]

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6 0

3 years ago

Convert -3pi/10 to degrees

ipn [44]

we know there are 180° in π radians, how many degrees then in -3π/10 radians?

$\bf \begin{array}{ccll} degrees&radians\\ \cline{1-2} 180&\pi \\\\ x&-\frac{3\pi }{10} \end{array}\implies \cfrac{180}{x}=\cfrac{\pi }{~~-\frac{3\pi }{10}~~}\implies \cfrac{180}{x}=\cfrac{\frac{\pi}{1} }{~~-\frac{3\pi }{10}~~} \\\\\\ \cfrac{180}{x}=\cfrac{\pi }{1}\cdot \cfrac{10}{-3\pi }\implies \cfrac{180}{x}=-\cfrac{10}{3}\implies 540=-10x\implies \cfrac{540}{-10}=x \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill -54=x~\hfill$

5 0

4 years ago

7x + 8y = 25 9x + 10y =35 elimination method please

djverab [1.8K]

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