What is the period of the sinusoidal function? enter your answer in the box.

4

Step-by-step explanation:

From the graph we can read off the interval over which the graph repeats itself.  If we chose to begin at (0,0), the graph would repeat itself beginning at (4,0).  Thus, the period is 4.

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step-by-step explanation:

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles