1) If the ball is thrown upward from the building 30 m tall and ball has the vertical velocity of 25 m/s, then its approx height above ground t seconds later is provided by h(t)=30+25t-5t^2
i. after how many seconds ball hits ground?
ii. Determine the domain of h?
iii. how high ball goes?
2) The publisher of the magazine which has the circulation of 80,000 and sells for $1.60 a copy makes decision to increase price of mag due to increased production and distribution costs. By surveying readers of magazine, publisher finds which magazine will lose 10,000 readers for each .40 increase in price. What price per copy maximizes income?
3) The orange grower has 400 crates of fruit ready for market and will have 20 more for each day grower waits. Current price is $60 per crate and will drop an evaluated $2 per day for every day waited. In how many days must grower ship crop to maximize income?