The table represents four brands of chewing gum (A, B, C, and D). Three random samples of 40 subjects each were collected. Subjects were asked to taste each brand of gum and pick their favorite brand. Use the mean deviation to determine which gum has the greatest amount of variation in the population.

22 dimes and 9 nickels

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