In a mountain range of California, the percent of moisture that falls as snow rather than rain can be approximated by the function [tex]$p(h) = 79 \ln(h) - 621$[/tex], where [tex]$h$[/tex] is the altitude in feet and [tex][tex]$p(h)$[/tex][/tex] is the percent of annual snowfall at the altitude [tex]$h$[/tex].

Use the function to approximate the amount of snow at the altitudes of 5000 feet and 7000 feet.

The percent of annual precipitation that falls as snow at 5000 feet is approximately [tex]\square[/tex]%.
(Round to the nearest integer.)



Answer :

To find the percent of annual precipitation that falls as snow at an altitude of 5000 feet using the given function [tex]\( p(h) = 79 \ln(h) - 621 \)[/tex], we need to follow the steps below:

1. Determine the value of [tex]\( h \)[/tex]:
- Here, [tex]\( h = 5000 \)[/tex] feet.

2. Substitute [tex]\( h = 5000 \)[/tex] into the function:
- [tex]\( p(5000) = 79 \ln(5000) - 621 \)[/tex]

3. Compute the value of [tex]\( p(5000) \)[/tex]:
- After substituting 5000 feet into the function and performing the necessary operations, you find that the percent of annual precipitation that falls as snow at 5000 feet is approximately 52%.

Thus, the percent of annual precipitation that falls as snow at 5000 feet is approximately 52%. (Rounded to the nearest integer.)

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Similarly, to find the percent of annual precipitation that falls as snow at an altitude of 7000 feet using the same function:

1. Determine the value of [tex]\( h \)[/tex]:
- Here, [tex]\( h = 7000 \)[/tex] feet.

2. Substitute [tex]\( h = 7000 \)[/tex] into the function:
- [tex]\( p(7000) = 79 \ln(7000) - 621 \)[/tex]

3. Compute the value of [tex]\( p(7000) \)[/tex]:
- After substituting 7000 feet into the function and performing the necessary operations, you find that the percent of annual precipitation that falls as snow at 7000 feet is approximately 78%.

Thus, the percent of annual precipitation that falls as snow at 7000 feet is approximately 78%. (Rounded to the nearest integer.)