Answer:
25 mph.
Step-by-step explanation:
Le tx mph be the speed of the boat in still water. Then the speed going downstream is x+5 mph and the speed going upstream is x-5 mph.
1. A boat goes 240 miles downstream and it took it
2. A boat goes 160 miles upstream and it took it
Then
Remainder Theorem says that if there is any Polynomial equation P(x), which is to be divided by (x - a) then remainder can be calculated by substituting value of a in equation P(x).
= P(x) divided by
Step 1: Find a
To find a we will have to convert (x+2) into (x - a) form
i.e. (x+2) = (x - (-2))
therefore, a = -2
Step 2: Substitute value of a in P(x),
By substitution we get,
=
=
= = Remainder
Hence, Remainder is 55.
Answer:
5126.52
Step-by-step explanation:
Time = 25 years
Population after 25 years = 29000
Biologists observe that the population doubles every 10 years, and now the population is 29,000
No. of 10 years in 25 years =
So, t = 2.5 years
Rate = 2
Formula =
y is the population after t years
a is the initial population
b = rate
t = time
Hence the initial size of the bird population is 5126.52
If your adding its 17, Subtracting its 7, multiplying its 60 and dividing its 2.4 hope this helps