Answer:
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
Number cube:
A number cube is a dice, which has six sides, numbered 1 to 6.
P(4)
One the sides is a 4, thus:
P(not a 2)
Of the 6 sides, one is a 2, and the other 5 are not 2. So
P(3 or 5)
One sides is 3, other is 5, 1 + 1 = 2. So
Answer:
t = ln(0.5)/-r
Step-by-step explanation:
The decay rate parameter is missing. I will assume a value of 4% per day.
The exponential decay is modeled by the following equation:
A = A0*e^(-r*t)
where A is the mass after t time (in days), A0 is the initial mass and r is the rate (as a decimal).
At half-life A = A0/2, then:
A0/2 = A0*e^(-0.04*t)
0.5 = e^(-0.04*t)
ln(0.5) = -0.04*t
t = ln(0.5)/-0.04
t = 17.33 days
In general the half-life time is:
t = ln(0.5)/-r
The correct answer is $48 for 3 hours
Answer:
missing number is 5
Step-by-step explanation:
idunno
A.) Toy cars
That is because since Mr. Winters is going to buy a toy box that can hold as many toys as the one be replaced, he can use toy cars to measure or determine the size of the toy box.