1) A ball is thrown from the top of a building and follows the path given by a h(d)=-0.05d^2+1.25d+36.1875

Where d is the distance on the ground in yards and h(d) is the height in yards

A) Does the call ever reach a height of 60 yards? If so what is the distance?

B) find the maximum height of the ball

C) find the distance the ball is thrown when it hits the ground

2) a company knows that -2p + 1500 models the number of wheelbarrows it sells per month, where p is the price of a wheelbarrow. Revenue from sales is the number of wheelbarrows multiplied by the price of the wheelbarrow.

A) What is the maximum revenue?

B) What price will maximize the revenue

3) The cross section of a hill can be modeled by h(x)-0.018^2+1.44x

Where x is the distance in feet and h(x) is the height in feet.

A) how high is the hill?
B) how wide is the hill?

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.