Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s...
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Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s (in knots) and the height h (in feet) of the waves are related by the model . If the waves are about 9.5 feet tall, what is the wind speed? (1 knot is equivalent to about 1.15 miles per hour.) 0.019 h = s 0.019 h = s SOLUTION Write given model.
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Guided Practice In Example 4, suppose the waves grow to about 15 feet tall. What is the wind speed rounded to the nearest knot? for Example 4 ANSWER 28 knots 13.WHAT IF?
Transcript of Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s...
![Page 1: Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s (in…](https://reader037.fdocuments.net/reader037/viewer/2022090107/5a4d1be47f8b9ab0599e13a5/html5/thumbnails/1.jpg)
Example 4 Using an Irrational Number in Real Life
WAVESFor large ocean waves, the wind speed s (in knots) and the height h (in feet) of the waves are related by the
model . If the waves are about 9.5 feet tall,
what is the wind speed? (1 knot is equivalent to about 1.15 miles per hour.)
0.019h=s
0.019h
=s
SOLUTION
Write given model.
![Page 2: Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s (in…](https://reader037.fdocuments.net/reader037/viewer/2022090107/5a4d1be47f8b9ab0599e13a5/html5/thumbnails/2.jpg)
Example 4 Comparing Real Numbers
0.0199.5
= Substitute 9.5 for h.
= Divide.500
≈ Approximate square root.22.4
ANSWER The wind speed is about 22 knots.
![Page 3: Example 4 Using an Irrational Number in Real Life WAVES For large ocean waves, the wind speed s (in…](https://reader037.fdocuments.net/reader037/viewer/2022090107/5a4d1be47f8b9ab0599e13a5/html5/thumbnails/3.jpg)
Guided Practice
In Example 4, suppose the waves grow to about 15 feet tall. What is the wind speed rounded to the nearest knot?
for Example 4
ANSWER 28 knots
13. WHAT IF?