Answer: The answer is 0.429 (0.43 or 0.4)
Step-by-step explanation: When you do 7/3, you get 2.33. So, you take 1 for the 1 cup of red paint and divide it from 2.33 (constant of proportionality) and you get 0.4!
Answer:
x = 1/20 y^2
Step-by-step explanation:
This is a rightward opening (sideways ) parabola
Directrix = x = -5
Distance formula form point x,y to directrix and focus are equal:
(x - -5)^2 = (x-5)^2 + y^2
x^2 + 10x + 25 = x^2 - 10x + 25 + y^2
20x = y^2
78=c-13
c=65
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13 65 78