Step-by-step explanation:
-5x+y+9-4x-8y+11
-9x-7y+20
Answer:
○![\displaystyle -\frac{6}{\sqrt{35}}\:[or\:-\frac{6\sqrt{35}}{35}]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20-%5Cfrac%7B6%7D%7B%5Csqrt%7B35%7D%7D%5C%3A%5Bor%5C%3A-%5Cfrac%7B6%5Csqrt%7B35%7D%7D%7B35%7D%5D)
Explanation:
Looking in quadrant III, in the degree-angle range of 180° to 270°, take the <em>inverse</em><em> </em><em>of</em><em> </em><em>cosine</em><em> </em>to get your angle measure, then plug it into the <em>cosecant</em><em> </em>function to get the above answer.
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Number5 is (9,17)
number 6 is 5
number 7is17