Rainforest data:

Mean = 7 σ2 = 12.405 σ ≈ 3.522

When using the formula zx =
x − μ
σ
for the z-score for the 11.7 data point:

x is = 11.7 μ=7

z11.7 ≈  1.3

next two is A and B

Step-by-step explanation:

These are correct 100%

Step-by-step explanation:

1. x= 11.7 μ = 7

2. z11.7 = 1.3

3. A

4. B

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

c

step-by-step explanation:

there is vertical asymptote at x = 2 and x = 0

vertical asymptote occurs at the points where the denominator is 0. so we can say that

x = 2 occurs when there is a factor (x-2) in the denominator, and

x = 0 occurs when there is a factor "x" in the denominator

thus, the denominator of the equation would have "x * (x-2)", this is option c only. that's the correct answer.