Use the distrubution property and multiply -16 by -8s and 17.
128s-272
Well, if I were to come up with a real world situation that would involve finding the area of a circle then I think that a good real world situation would be finding the area of a circular sandpit.
Answer:

Step-by-step explanation:
Since the vertex is right between the vertex and the directrix, the y value of the vertex must be (3+(-1))/2=1. The x coordinate will just be the same as that of the focus, or in this case 0. This means that the vertex will be at (0,1). Since the graph opens toward the focus, it will be opening up, and since its vertex is at (0,1), it will have an equation of:

Hope this helps!
Answer:
6
Step-by-step explanation:
8+4=12
12-6=6
The simplest way to think of this is a ratio. In the original 7 cards used for demonstration, 4 are blue. You can write it like this:

Since there are 84 total cards, and you need to find how many total blue cards there are, you can compare the total of the sample to the complete total, and then solve for an x value of total blue cards.

=

You can solve using cross multiplication. 84*4=336. 7*x=336.
x=48