Answer:
Option A
Step-by-step explanation:
Since X,Y and Z are on the same line, The gradient is the same so far as the point chosen are on the same line.
Answer:
10.2 years
Step-by-step explanation:
it decays 4.9% per year.
figure out how many years it takes to decay 50% (half-life)
50/4.9 = 10.2
B, it should add up to 180 degrees
Answer:
1/3x = 16,
Step-by-step explanation:
Let the total number of people be x.
Then the equation is:
1/3x - 11 = 5
1/3x = 16.