Marta’s starting annual salary is $24,500. At the beginning of each new year, she receives a $2850 raise. Write a recursive form
ula to find Marta’s salary f(n) after n years. What will Marta’s salary be after 5 years?
2 answers:
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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.
