Answer:
r = -11
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
cubes means 3. You do 5 to the 3rd power and you get 125
Answer:
The function that represents the mass of the sample after t days is
.
The percentage rate of change per hour is of -2.46%.
Step-by-step explanation:
Exponential amount of decay:
The exponential amount of decay for an amount of a substance after t days is given by:

In which A(0) is the initial amount, and r is the decay rate, as a decimal.
Element X is a radioactive isotope such that its mass decreases by 59% every day. The experiments starts out with 390 grams of Element X.
This means, respectively, that 
So



The function that represents the mass of the sample after t days is
.
Hourly rate of change:
Decreases by 59% every day, which means that for 24 hours, the rate of change is of -59%. So
-59%/24 = -2.46%
The percentage rate of change per hour is of -2.46%.
Answer:
The answer is A
Step-by-step explanation:
A because it's simply adding by 4 on the right-hand side.
There are an infinite number of solutions given the information you provided. For every real value of x there will be a corresponding real value of y.
y=5x+7 Has not restriction upon the domain or range...
What is the value of y? 5x+7