Answer:
A
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Equation of a circle is given by (x - a)^2 + (y - b)^2 = r^2; where (a, b) is the center of the circle.
By comparison, (x - 2)^2 + (y + 5)^2 = 16 has center at point (2, -5).
Translating the circle 4 units to the left and 1 unit up gives a new center at point (2 - 4, -5 + 1) = (-2, -4)
If it costs $12.5 for every GB and we use 8 then 12.5*8=$100. So if our flat rate now is $70 we would loose 100-70=$30
So Maria would loose $30 a month if she pays per GB
Answer:
3) b = {4 , 9}
Step-by-step explanation:
x^2 + 13x + 36
36 = 9 * 6
13 = 9 + 4
so
x^2 + 13x + 36 = (x + 9)(x + 4) or = (x + 4) (x + 9)
possible b = {4 , 9}
