Answer:
2 bears in 2020.
Step-by-step explanation:
We have been given that a new bear population that begins with 150 bears in 2000 decreases at a rate of 20% per year.
We will use exponential decay formula to solve our given problem as:
, where,
y = Final quantity,
a = Initial value,
r = Decay rate in decimal form,
x = Time
Upon substituting our given values in above formula, we will get:
, where x corresponds to year 2000.
To find the population in 2020, we will substitute 
in our equation as:
Therefore, 2 bears are there predicted to be in 2020.
Since population is decreasing so population is best described as exponential decay.
Answer:
The answer is 88%
After 7 seconds the cup is about 88% filled with water.
Answer:
1. $327.60
2. $21,560.00
3. $2,208.28
Step-by-step explanation:
The formula for simple interest is:
I = Prt
where
I = amount of interest
P = principal amount
r = annual interest rate
t = number of years
The total future amount after earning simple interest is the principal polus the interest.
F = P + Prt
F = P(1 + rt)
1.
F = P(1 + rt)
F = $210(1 + 0.08 * 7)
F = $327.60
2.
F = P(1 + rt)
F = $14,000(1 + 0.06 * 9)
F = $21,560.00
3.
F = P(1 + rt)
F = $1,900(1 + 0.059 * 2.75)
F = $2,208.28
Point slope form is y - y1 = m(x - x1)
so if the slope is m= 2 and (x1,y1) = (1,3) is a point on the line the equation is:-
y - 3 = 2(x - 1)
A, tell me if wrong. Also if it it wrong i am really sorry
