Answer is C hope this helps
I wish I could help you but I doing this so I can ask sum
Radiologically, half lives describe the amount of time it takes for half the amount of the radioactive substance to decay. If you had 100g of a radioactive substance with a half life of one week, in seven days, only 50g would remain, and after another week, only 25g.
Fifteen days contains three half lives since the half life is 5 days long. Divide the starting amount by 2 for each half life that passes.
600g - 300g (1 HL) - 150g (2 HL) - 75g (3 HL)
So, only 75g of Bismuth-210 would remain after 15 days.
Answer:
x-intercept : 4
y-intercept : 22
Step-by-step explanation:
The equation is given as ;
11x + 2y = 44
write the equation in form of y= mx + c where c is the y-intercept and m is the gradient.
11x + 2y = 44
2y =-11x + 44 ----divide each term by 2 as;
y= -11/2 x + 44/2
y= -5.5 x + 22 ------equation of the graph
y-intercept is 22
x- intercept is the value of x when y=0
y= -5.5 x + 22
0 = -5.5 x + 22
5.5 x = 22
x = 22/ 5.5
x= 4
You can also plot a graph to view the relationship ;
By dropping acorns, and spreading them to other areas by animals and wind.