Answer:
2.4 years
equal height is 72 inches
Step-by-step explanation:
initial height of tree one = 36inches
initial height of tree two = 48inches
36 + 15x = 48 + 10x
15x = 12 + 10x
5x = 12
x = 2.4 years
Let the thickness (or the depth) of the shown figure = t
Total surface area =
=

= 10.6875 + 12.5
= 23.1875
∴ Volume = 23.1875 t
Answer:
A. 0.0001
Step-by-step explanation:
z-statistic:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
In this question:
The value of the z-statistic is z = 3.74.
The desired probability is 1 subtracted by the pvalue of z = 3.74.
z = 3.74 has a pvalue of 0.9999
Then
1 - 0.9999 = 0.0001.
So the correct answer is given by option A.