100-10=90
450=90% of original find 100%
divide by 9
50=10%
times 10
500=100%
origianl price=$500 (this is the hack way that only works with nice numbers)
Answer:
4.5 or 4 1/2 they are both the same
Step-by-step explanation:
simple math
Answer:
The correct answer is D
Step-by-step explanation:
The reason we get this answer is because when you are converting from exponential form, to radical form you always place the numerator as our constant's exponent in the radical ( is called the radicand because it is located in the radical) and the denominator in front of the radical, where it would be called the index.
The given equation of parabola is:
Part 1) Focus of the Parabola
In order to find the focus and equation of directrix, we first have to convert the given equation to standard form of parabola.

The focus of the general equation of parabola shown below lies at (h+p, k)

Comparing our equation to the general equation we get:
h=0
k=0
p=6
So the focus of given parabola will be (0+6, 0) = (6,0)Part 2) Directix of the ParabolaThe directrix of the general parabola shown above lies at:
x = h - p
Using the values of h and p, we get
x = 0 - 6
x = -6
So, the directrix of the given parabola has the equation x = -6
<span>A(n) = 50 x (0.52)n-1; 13.52 cm
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