Answer:
40 years after 1982, there is 396.85 kilograms of radioactive element remaining. The area will not be safe for human habitation by 2022.
Step-by-step explanation:
We are given the following in the question:

where f(x) is the amount of normal curve cannot be used as an approximation to the binomial probability. in kilograms x years after 1982.
We have to approximate f(40)
Putting x = 40, we get

Thus, 40 years after 1982, there is 396.85 kilograms of radioactive element remaining.
With 100 kilograms of radioactive material, the area is unsafe for humans.
Thus, the area will not be safe for human habitation by 2022.
Answer:
4n /m
Step-by-step explanation:
We know that a^-b = 1/ a^b
4 m^-1 n
4 * 1/m^1 * n
4n /m
Answer:
x = 17
Step-by-step explanation:
Here, we want to find the value of x
mathematically, the mean is the sum of the numbers divided by the count of the numbers
The count of the numbers is 5
So we have;
(16 + 14 + x + 23 + 20)/5 = 18
73 + x = 5(18)
73 + x = 90
x = 90-73
x = 17
Answer: Many solutions
Step-by-step explanation:
Let's solve for x.
3x−7y=−14−3x+6y
Step 1: Add 3x to both sides.
3x−7y+3x=−3x+6y−14+3x
6x−7y=6y−14
Step 2: Add 7y to both sides.
6x−7y+7y=6y−14+7y
6x=13y−14
Step 3: Divide both sides by 6.
6x
6
=
13y−14
6
x=
13
6
y+
−7
3
Answer: -2 goes on 3 7 goes
Son 1 5 goes on -1/10 goes on lasttep-by-step explanation: