Find the value of the expression
1 answer:
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Answer:
Like terms:
1.25x²
-8x²
Step-by-step explanation:
Like terms are terms that have the same variable to the same exponent. In this case, the only like terms are those with the variable 'x' to the exponent of '2', or x². This would include the terms:
1.25x²
-8x²
The term 5yx², also includes x², however, it also includes the variable 'y' which makes it 'unlike' the other terms.
Answer:
C. 1.8027
Step-by-step explanation:
The exponential population growth model is given by:
In which P(t) is the population after t years, is the initial population and r is the growth rate.
At the beginning of a population study, the population of a large city was 1.65 million people. Three years later, the population was 1.74 million people.
This means that
Applying this to the equation, we find r. So
Applying ln to both sides
So
What would be the population of the city 5 years after the start of the population study?
This is P(5).
So the correct answer is:
C. 1.8027