Answer:
D
Step-by-step explanation:
Answer:
Initial Population size = 2200
Step-by-step explanation:
The initial Population is
2200 * (0.85) ^ t
What you need to do is make the initial time = 0 When you do that you get
2200 * (0.85) ^ 0
Anything to the 0 power = 1 So the answer is 2200
Answer:
Step-by-step explanation:
<u>Given</u> :
- f(x) = 2x² + 2
- g(x) = x² - 1
Now, this problem can be used using a simple formula.
Let's solve.
- (f - g)(x) = 2x² + 2 - (x² - 1)
- (f - g)(x) = 2x² - x² + 2 + 1
- (f - g)(x) = x² + 3
∴ The answer will be x² + 3.
In case A, as the error would be a difference of 1, the assumption could be mantained, but in case B the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
<h3><u>Ratios</u></h3>
Given that a preliminary study was carried out to test the hypothesis that the ratio of white to dark herons on the island was 3:1, but A) a small census found 16 white morphs and 4 dark, to determine if the assumption of a 3 :1 ratio could be rejected, and B) to determine the same question if the census were larger with 160 white morphs and 40 dark, the following calculations must be made:
A)
- 3 + 1 = 4
- 16 + 4 = 20
- 4 = 20
- 3 = X
- 60 / 4 = X
- 15 = X
- Therefore, as the error would be a difference of 1, the assumption could be mantained.
B)
- 3 + 1 = 4
- 160 + 40 = 200
- 150 = 3:1
- In this case, the difference will be bigger, showing that the ratio is not 3:1 but 4:1.
Learn more about ratios in brainly.com/question/1504221
Answer:
P = (65 - R) / 60
Step-by-step explanation:
Raul's grandfather is Miguel
Raul's sister is Paula
We are given that Raul’s age is the same as his grandfather’s age minus 60 times the age of his sister. If we write this mathematically, we have that:
R = M - (60*P)
Where R = Raul's age, M = Miguel's age and P = Paula's age
We are then given that Miguel is 65 years old, this means that M = 65
=> R = 65 - 60P
To find Paula's age, we make P the subject of formula, hence:
60P = 65 - R
=> P = (65 - R) / 60
We can use this expression to find Paula's age.
