Mathematics, 03.05.2021 14:00 jermiahj55

The height h(t) metres of the tide above the mean sea level on the 1st of April is given by the rule $h(t) = 4 \sin( \frac{\pi}{4}t )$
where t is the number of hours after midnight, between 0 and 24 hours.
For how long throughout the day was tide above 2m?

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The height h(t) metres of the tide above the mean sea level on the 1st of April is given by the rule where t is the number of hours after midnight, between 0 and 24 hours.For how long throughout the day was tide above 2m?​

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Another question on Mathematics

The height h(t) metres of the tide above the mean sea level on the 1st of April is given by the rule $h(t) = 4 \sin( \frac{\pi}{4}t )$
where t is the number of hours after midnight, between 0 and 24 hours.
For how long throughout the day was tide above 2m?