Answer:
≈ 16 g
Step-by-step explanation:
Half life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half of its initial mass.
Therefore;
New mass = Original mass × (1/2)^n, where n is the number of half lives
Thus;
New mass = 125 × (1/2)³
= 125/8
= 15.625
≈ 16 g
Answer:
Option B is correct.
the value of discriminant is, -7
Step-by-step explanation:
Given the equation: 
To find the value of discriminant 
A quadratic equation is of the form 
where a, b and c are coefficient of the equation.
On comparing with given equation we have;
a = 1 , b = 1 and c = 2
then;
Discriminant = 
Therefore, the value of discriminant is, -7
Answer:
1, -5
Step-by-step explanation:
you can this solve easily
3 - -1 = 4 units down from y = -1
x does not change in this reflection
Answer:
It can sometimes be difficult to divide fractions, such as 3/7 divided by 1/5. But it's no problem! We have displayed the answer below: 3/7 ÷ 1/5 = 2 1/7
Step-by-step explanation:
Answer:
Step-by-step explanation:
