In a 3 hour examination of 350 questions, there are 50 mathematics problems. if twice as much time should be allowed for each mathematics problem as for each of the other questions, how many minutes should be spent on the mathematics problems?

Find the solutions for a triangle with a =16, c =12, and b = 63º

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.