Answer:
25 degrees
Step-by-step explanation:
The box mark means that the angle is 90 degrees. Thus, we know that x and 65 have to add up to 90 degrees.
x+65=90
So,
x=25 degrees
Answer:
5 - 1 year
6 - 738.92
Step-by-step explanation:
5: 260 = 250(1.04)^t
Divide both sides by 250, and we get 1.04. So t must be 1.
6: x + 45 = x(1.03)²
Solve to find x
Answer:
97.6% of the trees will have diameters between 7.6 and 18.6 inches.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 12 inches
Standard Deviation, σ = 2.2 inches
We are given that the distribution of diameter of tree is a mound shaped distribution that is a normal distribution.
Formula:

P(diameters between 7.6 and 18.6 inches)

97.6% of the trees will have diameters between 7.6 and 18.6 inches.
Pi feet squared (I hope I helped!)
Answer:
904.78 in I think but I'm not 100%