Answer:
Karina is correct
Step-by-step explanation:
<em>See attached</em>
<u>Area that Karina cleaned up:</u>
- 1/2*(6-0)(9-2) = 1/2*6*7 = 21
<u>Area that Petty cleaned up:</u>
As we see Karina cleaned up more area than Petty, so she is correct
Answer:
-8/1 or just -8
Step-by-step explanation:
Answer:
It is impossible that the mean of the sample of 100 fertilizers less than 2 mg.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 2.5 mg
Standard Deviation, σ = 0.1 mg
We are given that the distribution of percentage of nitrogen score is unknown.
Formula with sampling:
P( mean of the sample of 100 fertilizers less than 2 mg)
P(x < 2)
Calculation the value from standard normal z table, we have,
Thus, it is impossible that the mean of the sample of 100 fertilizers less than 2 mg.
You want to complete the square for this question.
However, we can tell that this equation is a perfect square, because by looking at the form: ax^2+bx+c, b is double the square root of c and c is a perfect square.
Therefore, the equation can be rewritten as y=(x-3)^2. Since there is no translation in the y direction (looking at the general equation y=a(x+d)^2+e, e represents a translation in the y direction), the vertex would neither be above or below, but on the x-axis. The point of the vertex is (3,0) from this equation, and therefore the answer is A. It is not on the y axis because the parabola has a translation in the x direction (as represented by the x-3, which means it has been translated 3 units to the right).
