Answer:
b and c
Step-by-step explanation:
We are given that a population whose growth over a given time period can be described by the exponential model
Let initial population =
when time t=0
After integrating
We get ln N=rt +C
Where C is integration constant
When t=0 then N=
Substitute the value of C then we get
When r=0.1 then we get
Hence, the population increase not decrease.
When r= 0
Then we get
Hence, the population do not increase or decrease.
So, a population with r of 0 will have no births or deaths during the time period under consideration.
If we take a positive value of r then the population will increase exponentially .
Hence, option b and c are both correct.
7 cups of flour ... 9 people
x cups of flour = ? ... 15 people
If you would like to know how many cups are needed to make a cake for 15 people, you can calculate this using the following steps:
7 * 15 = 9 * x /9
x = 7 * 15 / 9
x = 35/3
x = 11 2/3 cups of flour
Result: 11 2/3 cups of flour are needed to make a cake for 15 people.
Answer: 689 + 30/32
Step-by-step explanation:
A reduction of A by B, means that we need to solve:
A - B.
So if we want to reduce 738 and 7/32 by 48 and 9/32 we have to solve:
(738 + 7/32) - (48 + 9/32)
we can separate it into whole and fraction:
(738 - 48) + (7/32 - 9/32)
690 - 2/32
But we usually don't want a negative fraction, so we can use that:
1 = 32/32
690 - 2/32 = 689 + 1 - 2/32 = 689 +32/32 - 2/32 = 689 + 30/32
225 because to find the area of a square or rectangle you take LxW which is 3x5 and you get 15 square km. and since there is 15 per square km you multiply 15x15 and get 225.
