3 years ago

The area with a circle of a radius of 24

Mathematics

2 answers:

inessss [21]3 years ago

3 0

A= pi • r•r =
A = pi • 10• 10

a_sh-v [17]3 years ago

3 0

(24 •24) •3.14 ( which is pi)= 1,808.664

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3 years ago

The function f(t) = 5 cos(pi over 6t) + 7 represents the tide in Stanley Sea. It has a maximum of 12 feet when time (t) is 0 and

Juliette [100K]

The function for the height is
$f(t) = 5cos( \frac{ \pi }{6} t)+7$

f(0) = 5 cos(0) + 7 = 5 + 7 = 12 (verified)
The period is T = 12 hours.

After 4 hours (t = 4), the height is
$f(4) = 5cos( \frac{ 4\pi }{6} )+7 = 5*(-0.5)+7=4.5$

A graph of f(t) confirms the answer.

Answer: 4.5 ft