Answer:
4 cm
Step-by-step explanation:
The equation of a parabola with its vertex at the origin can be written as ...
y = 1/(4p)x^2
The problem statement tells us that one point on the parabola is (x, y) = (12, 9). We can put these values into the equation and solve for p, the distance from the focus to the vertex.
9 = 1/(4p)(12^2)
9×4/144 = 1/p = 1/4 . . . . . . . . multiply by the inverse of the coefficient of 1/p
Then p = 4, and the bulb is 4 cm from the vertex.
Shape, size, color, shading
Answer:
area = 45
Step-by-step explanation:
triangle = 7*6. / 2 = 21
rectangle 4*6=24
24+21= 45ft squared
Answer:
Unit rate = 50m/h
Step-by-step explanation:
Distance = 25 (x2) = 50 ( basically make the den 1 and wht
Time = 1/2 hr (x2) = 1hr u do to den do to num)
Unit rate = 50m/h
(x-3)=-3x+25
Because we know that y=x-3 so we put that in place of y in the equation