The screen in a theatre is 22 ft high and is positioned 10 ft above the floor, which is flat. the first row of seats is 7 ft from the screen and the row are 3 ft apart. you decide to sit in the row where you get the maximum view, that is, where the angle thetha subtented by the screen at your eyes is a maximum. suppose your eyes are 4 ft above the floor, as in the figure, and you sit at a distance x from the screen.

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

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: