Answer:
n=9
Step-by-step explanation:
You use reverse PEMDAS.
First you would divide by 3 on both sides. This should give you:
n²=81
Then you would find . Which is 9.
During high tide around 11:00 p.m., the water level is 3 feet above a marker on a pier. The following day, during low tide aroun
d 5:12 a.m., the water level has dropped 3 feet below the marker. The height of the water is modeled by the function y = 3 cosine (StartFraction 24 pi Over 149 EndFraction x), where x is the time in hours since 11:00 p.m.
What is the height of the water at 2:15 a.m.?
What is the height of the water at 2:15 a.m.?
1 answer:
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Answer:
x =
Step-by-step explanation:
Use Pythagorean theorem,
Hypotenuse² = base² + altitude²
x² = (√8)² + 4²
= 8 + 16
= 20
x = √20 =
x =