During the first 3 centuries ad, the roman empire produced coins in the eastern provinces. some historians argue that not all these coins were produced in local mints, and further that the mint of rome struck some of them. because the "style" of coins is difficult to analyze, the historians would like to use metallurgical analysis as one tool to identify the source mints of these coins. investigators studied 11 coins known to have been produced by local mints in an attempt to identify a trace element profile for these coins, and have identified gold and lead as possible factors in identifying other coins as having been locally minted. the gold and lead content, measured as a % of weight of each coin, is given in the table at right, and a scatter plot of these data is presented below. gold % by weight lead % by weight 0.3 0.17 0.31 0.19 0.28 0.21 0.32 0.22 0.34 0.28 0.29 0.26 0.33 0.32 0.26 0.17 0.3 0.19 0.27 0.19 0.27 0.17 a) suppose that the locally minted coins analyzed in the table

1. a) What is the equation of the least squares best fit line? %Lead = 1.306 -3.635 (%Gold)

1. b) (.24,.43)

1. c) r=.459 There is a moderately negative relationship between % of gold by weight and % or lead by weight.  

Step-by-step explanation:

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!