Lodine-131 has a half-life of 8 days. If authorities found an original sample of 2.5 grams right after an emission from the plant how much iodine-131 would be left 30 days later?

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.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

positive

step-by-step explanation:

the quadrant is facing upwards