Given the same type of golf ball scenario with an equation y=-0.004x^2 +1.6x, horizontal distance of 400 feet, maximum height of 160 feet, and using the helpful projectile motion formula below, answer the following. a) what is the angle at which the ball takes off?
b) how long is the ball in the air?
c) what is the ball’s soled when it hits the ground?

i think 5 miles per hour

step-by-step explanation:

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: