Answer:
the third box
Step-by-step explanation:
The vertex of the parabola is (-3, 9)
In order to find the vertex of any quadratic, you start by finding the x-value of said vertex. This can be done using the equation below.
-b/2a
In this equation 'a' refers to the coefficient of x^2 (-1) and 'b' refers to the coefficient of x (-6). So then we can plug into that equation using those values.
-b/2a
-(-6)/2(-1)
6/-2
-3
Now that we have the x value, we can substitute that value into the equation to find the y value.
f(x) = -x^2 - 6x
f(x) = -(-3)^2 - 6(-3)
f(x) = -(9) + 18
f(x) = 9
Therefore our point is (-3, 9)
Answer:
C) The mean of this data set is 12.
Step-by-step explanation:
When you add all of the numbers together you get 102.
13+11+16+12+42+8 = 102
Divide this by 66 because that is how many numbers are being used.
102/6 = 17 is the mean
If this answer is correct, please make me Brainliest!
We must know how many inches the plant grows in one month.
13 ÷ 5 = 2.6
The plant grows 2.6 inches a month.
Simply multiply 2.6 by the corresponding months to fill in the rest of the boxes.