Evaluate the integral. ∫50∫25−x2√−25−x2√∫25−x2−z2√−25−x2−z 2√1(x2+y2+z2)1/2dydzdx∫05∫−25−x225− x2∫−25−x2−z225−x2−z21(x2+y2+z2)1/2d ydzdx

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?