On a windmill, the tip of one blade moves in a circular motion. The maximum height is 18 feet and the minimum height is 4 feet. The height of the tip of the blade (in feet) can be modeled by the function h(x)=−14sinx+18 h(x)=−14sinx+18 where x is time in seconds. Use the inverse function to determine how many seconds it will take to make a full rotation for one blade. A 0.3 second

B 0.6 second

C 1.6 seconds

D 3.2 seconds

The correction is  D

Step-by-step explanation:

From the question we are told that

    The maximum height is  

    The minimum height is

     The function that models the height of the blade is here x is time in seconds

 Now at maximum height

=>    

=>            

=>    

=>        

 Now at minimum  height

=>      

=>    

=>    

=>    

Now this values is the time taken to move from the higher position of the blade to the lower position of the blade

Now it will take this same amount of time to complete the circle

So the total time take is

=>  

=>  

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.