Answer:
A closed dot represents a lreater than or equal to or less than or equal to, which can be distinguished in an inequaity's equation by an underline.
Step-by-step explanation:
What do u need help with. City a is -15 and city b is +15 or just 15
Answer:
2
Step-by-step explanation:
To find the slope of the graphed line, you take two points. I have chosen (0, 4) and (8, 0)
The formula of a slope is (y value of second point 
value of first point) divided by (x value of second point 
value of first point):
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The slope for a perpendicular line is 2.
Answer:
<em>The answer is 0</em>
<em>So I think no solutions</em>
Step-by-step explanation:
You gotta get each equation into slope-intercept form, nd when u do that 9x - 3y = 6 turns into y = 3x - 2, nd 5y = 15x + 10 turns into y = 3x + 2. Add the equations together, nd get 0.
From what I can tell, this can't be simplified, because there are no factors of 42 that are perfect squares. I would leave it as the square root of 42.
