Answer:
Answer in image below
Step-by-step explanation:
Answer:
The answer is AB
Step-by-step explanation:
As A+B=AB
Answer:
True
Step-by-step explanation:
B would be the midpoint because it is in the middle of both showing thats where both points connect.
Answer:
- p = -3
- v: (4, -1)
- f: (4, -4)
- d: y = 2
Step-by-step explanation:
The equation ...
(x -h)² = 4p(y -k)
is the equation of a parabola with vertex (h, k) and vertex-focus distance of p. When p is negative (as here), it means the focus is below the vertex, and the parabola opens downward. The directrix is p units on the other side of the vertex from the focus.
The vertex for equation ...
(x -4)² = -12(y +1)
is (h, k) = (4, -1). The value of p is (-12/4) = -3, so the focus is (4, -1-3) = (4, -4), and the directrix is y = -1+3 = 2.
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<em>Additional comment</em>
As a check on the graph, you can remember that any point on the parabola is equidistant from the focus and directrix. You will notice the vertex is halfway between the focus and directrix, so you know that relationship is true there.
You will also notice that a horizontal line from the focus to the parabola intersects the same distance away from the focus as from the directrix. Thus the parabola distance relation holds at that point as well.
Inflation at a constant rate can be solved using the compound interest formula:
present value, P = 2.80
inflation rate, i = 2.8% = 0.028
period, n = 7 (years)
Value in 7 years,
future value
= P(1+i)^n
= 2.8(1.028)^7
= 3.3971
= 3.40 (to the nearest cent)