Acompany is developing a new high performance wax for cross country ski racing. in order to justify the price marketing wants, the wax needs to be very fast. specifically, the mean time to finish their standard test course should be less than 55 seconds for a former olympic champion. to test it, the champion will ski the course 8 times. complete parts a and b below. a) the champion's times (selected at random) are 58.4, 60.5, 46.6, 53.9,48.4, 46.1, 50.5, and 43.2 seconds to complete the test course. should they market the wax? assume the assumptions and conditions for appropriate hypothesis testing are met for the sample. assume α= 0.05

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

The following division is being performed using multiplication by the reciprocal find the missing numbers is 5/12 divided by x/3 equals 5/12 times x/10 equals 1/x

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below. trans typ./ check no. date description of transaction payment/ debit deposit/ credit (+) balance 1,200 00 324 10/6 miller's food market 45.87 45 87 groceries 1,154 13 325 10/7 cyber center computer outlet 218.59 218 59 monitor 935 54 326 10/9 sandy's beauty salon 30.00 30 00 haircut and styling 900 59 deposit 10/10 paycheck 621.33 621 33 1,621 92 evaluate leslie's check register. a. leslie did a good job. everything is correct. b. the final balance is wrong; she did not add everything correctly. c. leslie should have written debit instead of deposit for the transaction type. d. leslie switched the debit and credit columns.