Referring to the methods for calculating average atomic mass, which one is 'incorrect' ? Mary
Jack
Alan

Alan's method is correct coz to find we add all the given value and divide by the numbers present

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.