Step-by-step explanation:
First, find the vertex. The x coordinate is -b/2a, or 12/-4=-3. Plug this back in to get -18+36-21 or -3, so the vertex is (-3, -3). Now, slowly make the x -2, -1, 0, 1, on and on. Because parabolas are symmetric along the vertex, they will have the same values as -4, -5, -6, on and on.
Answer:
-3x-y=5
y-2z=7
x-4y+z=-9
Step-by-step explanation:
Associativ property
a(bc)=(ab)c
ability to move parenthaseese around
Answer:
5x+22
Step-by-step explanation:
8x-3x = 5x
13+9 = 22
Remember sign stays with the number
Answer:
436 items
Step-by-step explanation:
When a quantity A is inversely proportional to another quantity B, we can write:

Where k is the proportionality constant [that we need to find]
For this problem, we can write the ratio as:

Now given N = 480 and C = 4.90, we first find k:

Now, as second step, we need this time to find N, when
C = 5.40
Note, we know know k = 2352, so we find N:

Rounding to next whole number, we have 436 items