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slava [35]
3 years ago
14

The water level at a pier is modeled by the function y= 2.5 cos(2pi/12.5) +12, where y represents the water level measured in me

ters, and x represents the number of hours since the last high tide. After how many hours is the water first expected to reach a depth of 12 meters? Round to the nearest tenth of an hour.
ANSWER CHOICES
1.6 hours
3.1 hours
14.4 hours
19.6 hours
Mathematics
1 answer:
ivolga24 [154]3 years ago
3 0

Answer: 3.1 hours

Step-by-step explanation: Just took the quiz on edg.

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IgorC [24]

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d.  V = π(x^3 + 90x^2 + 2,400x  + 20,000)

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AB = 2x – 17, AC = 14, and BC = x + 1.<br> Find x.
Volgvan

9514 1404 393

Answer:

  • x = 10
  • AB = 3
  • BC = 11

Step-by-step explanation:

If B lies between A and C on a line segment, then ...

  AB +BC = AC

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2 years ago
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