Two students determine the percentage of lead in a sample as a laboratory exercise. the true percentage is 22.52%. the students' results for three determinations are as follows: 1. 22.52, 22.48, 22.542. 22.64, 22.58, 22.62precision can be judged by examining the average of the deviations from the average value for that data set. calculate the average value of the absolute deviations of each measurement from the average for the first set. calculate the average value of the absolute deviations of each measurement from the average for the second set.

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

0.32

step-by-step explanation:

2.24/7

5

step-by-step explanation:

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft