Janice needs to have a gastro-intestinal study. So she is given 375 mg of radiocontrast dye containg Barium-142. The half-life of Ba-142 is 10.6 minutes and its decay is followed by x-ray. After one half-life, of Ba-142 remains. After 31.8 minutes, of Ba-142 remains. After half-lives, 11.7 mg of Ba-142 remains. After minutes, 0.366 mg of Ba-142 remains. Finally, after approximately 3.5 hours - half-lives, only 0.000358 mg remains. The dye is no longer visible to the x-ray and Janice's study is over.

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

answer: (-6,3)

step-by-step explanation:

all you have to do is multiply them both to see how many out comes you can put:

3 x 2 = 6

you can make 6 diferent combinations of crusts and toppings.

~batmans wife dun dun