Answer:
the answer is C. 12
Step-by-step explanation:
B. 56° and 56°
C. 28° and 90°
D. 56° and 62°
Answer: the answer is B
Step-by-step explanation:
Answer:
56 and 62
Step-by-step explanation:
Answer:
5
Step-by-step explanation: c on edg
Answer: c=5
Step-by-step explanation:
C on edg got 100%
Answer:
(A)
Null hypothesis: Newspaper circulation in the city per day was = 15,000 in 2010
(B)
Alternative hypothesis: Newspaper circulation in the city today is > 15,000
(C)
Type 1 Error: This is the rejection of a true null hypothesis. It is the acceptance of the alternative hypothesis when the null hypothesis is true.
(D)
Type 2 Error: This is the non-rejection of a false null hypothesis. It is the acceptance of a null hypothesis when it is false.
Step-by-step explanation:
In statistical theory, the complete absence of any of these errors is virtually impossible.
The annual growth rates for each factor are:
1. the land required to grow a unit of food, -1% (due to greater productivity per unit of land)
2. the amount of food grown per calorie of food eaten by a human, +0.5%
3. per capita calorie consumption, +0.1%
4. the size of the population, +1.5%.
Required:
At these rates, how long would it take to double the amount of cultivated land needed? At that time, how much less land would be required to grow a unit of food?
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following annual growth rates:
land/food = - 1%
food/kcal = 0.5%
kcal/person = 0.1%
population = 1.5%
Σ annual growth rates = (-1 + 0.5 + 0.1 + 1.5)% = 1.1% = 0.011
Exponential growth in Land :
L = Lo * e^(rt)
Where Lo = Initial ; L = increase after t years ; r = growth rate
Time for amount of cultivated land to double
L = 2 * initial
L = 2Lo
2Lo = Lo * e^(rt)
2 = e^(0.011t)
Take the In of both sides
In(2) = 0.011t
0.6931471 = 0.011t
t = 0.6931471 / 0.011
t = 63.01 years
Land per unit of food at t = 63.01 years
L = Fo * e^(rt)
r = growth rate of land required to grow a unit of food = 1% = 0.01
L/Fo = e^(-0.01* 63.01)
L/Fo = e^(−0.6301)
= 0.5325385 = 0.53253 * 100% = 53.25%
Land per unit now takes (100% - 53.25%) = 46.75%
Answer:
(C) 25,35 and 175,35