During PE, Coach Kapke had her students do jumping jacks for 1 minute. Then she recorded the pulse rates. Make a stem and leaf plot to represent the data below. 170,150,110,120,120,150,160,160,170 ,170

Please Help! I have no idea how to do this.

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step-by-step explanation:

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet