Answer:
2/3
Step-by-step explanation:
the steps are in the pic above
Answer:
1) 30% 2) 124 yellow buttons
Step-by-step explanation:
1) 12 B’s out of 40 12/40= .3 x 100 = 30
2) 20%, 20/100, .2
620 x .2 = 124
Have no clue
Step-by-step explanation:
The required equation of the parabola is (y-5)² = 20(x+2)
<h3>Equation of a parabola</h3>
The standard equation of a parabola is expressed as;
(y-k)² = 4p(x-h)
where;
vertex = (h, k)
focus = (p+k, k)
directrix x = -p + h
Note that the directrix given will determine the type of the equation of a parabola
Given the following parameters
focus = (-2, 5) = (h, k)
x = -p + h
3 = p -2
p = 5
Substitute
(y-k)² = 4p(x-h)
(y-5)² = 4(5)(x-(-2))
(y-5)² = 20(x+2)
Hence the required equation of the parabola is (y-5)² = 20(x+2)
Learn more on equation of parabola here; brainly.com/question/4061870
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