The correct answer is B) y=80000(1.03)ˣ.
Population growth is represented using an exponential equation. These equations are of the form
y = a(1+r)ˣ, where y is the total population, a is the initial population, r is the growth rate, and x is the amount of time.
We first find the growth rate. This is the percent of change, which is found by
amount of change/original amount
The amount of change from 2010 to 2011 is 82400-80000=2400. 2400/80000 = 0.03, so r = 0.03.
The growth rate from 2011 to 2012 is (84872-82400)/82400 = 0.03. Checking the others, they are very close to this as well, so we will use this as r.
Our value of a in the equation is the initial population, 80000. This gives us:
y = 80000(1+0.03)ˣ = 80000(1.03)ˣ
Answer:
Step-by-step explanation:
take 50*4.5 and you'll get your answer
Answer:
...you may want to check my explanation...
Step-by-step explanation:
If the ratio of raisins to M&Ms in a bag of trail mix was 2:3, that means that there are 2 raisins for every 3 M&Ms. This means that in a bag of 100 items, there would be 40 raisins and 60 M&Ms. I'm not sure what the ratio would be as a fraction (maybe 2/3?), but I do know that the fraction for the number of raisins in the whole bag is 2/5 and the fraction for the number of M&Ms is 3/5.
Hope this helps!
<em>(If the answer is even right, that is...)</em>
Answer:
TRUE:
The square root of a positive number greater than 1 is less than the number.
The square root of a positive number less than 1 is between 0 and 1.
Step-by-step explanation:
The square root of a positive number greater than 1 is less than the number is TRUE. Example, square root of 4 is 2.
The square root of a positive number is always less than half of the number itself is FALSE. The square root of 1/4 is 1/2. Half of 1/4 is 1/8. It does not hold true that 1/2 < 1/8.
The square root of a positive number less than 1 is less than the number is FALSE. The square root of 1/4 is 1/2 and 1/4 < 1/2, not the other way around.
The square root of a perfect square is not a whole number is FALSE by the definition of a perfect square.
The square root of a positive number less than 1 is between 0 and 1 is TRUE. See the graph of .