The number of hours spent each week watching television by children under twelve is normally distributed with mean of 21.57 hours and a population standard deviation of 2.23 hours. Find the probability that the average time a sample of 20 children spend watching television is at least 22.10 hours each week.

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation:

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.