The center of a ferris wheel is 55 feet above the ground. the ferris wheel completes one revolution every 40 seconds. the distance between the lowest and highest points of the ferris wheel is 100 feet.

a trigonometric function models the height of the seat that starts closest to the ground when the wheel begins moving. (a) what is the period of the function?

(b) what is the amplitude of the function?

(c) what is the midline of the function?

(d) sketch the first two periods of the graph of the function. plot and label the key points of the graph. label each axis with an appropriate scale

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

48 / 6 = x

in this case, x will equal the amount of money in each card!

x therefore will be 8.

trent had $8 in each birthday card.