Answer:
C
Step-by-step explanation:
just did it on edgenuity.
The mean is 9.6
3+8+10+12+15= 48/5= 9.6
(a)The amount of soil he had last week
(b) p/2+4=28
(c) 12 because
(d) 12
6 is easy
7. never divide by a fraction, flip ot upside down and multiply, so multiply by 5 on both sides
8. subtract 3.45 on both sides
9. the answer is just 1
This is the formula to solve for the vertex.
Example Question:
Find the vertex of y = -0.5x^2 + 100x
-b/2a = -100/2(-0.5) = -100/-1 = 100
The x coordinate of the vertex is 100.
Best of Luck!
P.S. this is 1000th question i've answered :)