Answer:
Step-by-step explanation:
{2x - 6y = 28
{−x - y = 14
−⅙[2x - 6y = 28]
{−⅓x + y = −4⅔
{−x - y = 14
____________
[Plug this back into both equations above to get the y-coordinate of −7];
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Gregory draws a scale drawing of his room. The scale that he uses is 1 cm : 4 ft. On his drawing, the room is 3 centimeters long
1 answer:
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simplify : the exact value of sin 240
Explanation: sin(240)=sin(60+180)=-sin60
Final answer: the required vaalue of the sin 240 is -0.87