Question 9 (1 point)
-4x+y= - 10
y= 2x
What is the solution to the system of equations?
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Need this asap if anyone can i would be very grateful. if you could show workings that would really

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

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