For the following data set, find the range and the sample standard deviation (round to the nearest tenth:) 12, 15, 17, 18, 19, 25, 27
Select one:
a. range: 15, standard deviation: 5.3
b. range: 15, standard deviation: 3.8
O c. range: 25, standard deviation: 5.6
Od range: 10, standard deviation: 4.1

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Give all possible names for the line shown.calculation tip: lines can be written with either point first.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.