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dsp73
3 years ago
6

For an angle theta with the point (-5, -12) on its terminating side, what is the value of cosine?

Mathematics
2 answers:
Fantom [35]3 years ago
6 0
-5 is the adjacent side, -12 is the opposite side, the hypotenuse is 13
Cos = adjacent/hypotenuse
Cos = -5/13
The answer is C. 
FrozenT [24]3 years ago
4 0
The answer is C. .......................
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divide each term by 2 then simplify

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The graph of which of the following equations contains the point (-3,0)?
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3 years ago
Choose the solution(s) of the following system of equations x2 + y2 = 6 x2 – y = 6
ElenaW [278]
<h2>Answer</h2>

x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

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<h2>Explanation</h2>

Lets solve our system of equations  step by step

x^2+y^2=6 equation (1)

x^2-y=6 equation (2)

1. Solve for x^2 in equation (2)

x^2-y=6

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- For y=-1

x^2=6+y

x^2=6-1

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x=\sqrt{6}, y=0\\ x=-\sqrt{6} , y=0\\x=\sqrt{5} , y=-1\\x=-\sqrt{5} , y=-1

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