The time when the area will be safe again in the year 2086
<h3>What is a nuclear power plant?</h3>
A nuclear power plant is a plant that produces energy by the use of nuclear energy. In a nuclear plant we always have a nuclear fuel that is used in the plant. The fuel undergoes a fission reaction that enables the plant to be used for the production of electricity.
Now we know that a nuclear reaction is a case of exponential decay hence the y-intercept for this function is the decay constant of the function.
The time when the area will be safe again in the year 2086 because following the function;
f(x)=1000(0.5)^x/30 thus;
1000(0.5)^100/30
= 99.2 Kg
Learn more about nuclear decay:brainly.com/question/12224278
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Answer:
x=4, x=-4
Step-by-step explanation:
x^2-16=0
Add 16 to both sides;
x^2-16+16=0+16
Simplify;
x^2=16
x=, x
=4
factor the number;16
=
-
Factor the number 16;
=-4
Answer:
Mean = 0.45
Standard deviation = 0.04035
Step-by-step explanation:
This is actually a very simple problem.
The question gives us the report that 45% of the teenagers in the age bracket own smartphones.
P = mean = 45%
Therefore the mean is 0.45.
I will go ahead to help you calculate the standard deviation.
√p(1-p)/n
n = 152
P = 0.45
√0.45(1-0.45)/152
= √0.45(0.55)/152
= √0.2475/152
= √ 0.001628
= 0.04035
I think it is c but i’m not sure
The formula would be side x side / 2= a in2