Answer: 5:1
Step-by-step explanation:
Answer:
The populaton in year 1991 will be of 5178.9 million of people
and the population in year 2020 will be of 8524.60 million of people
Step-by-step explanation:
We measure the time t in years and let t=0 in the year 1950.
We measure the population P(t) in millions of people, then P(0)=2560 and P(10) = 3040.
Since we are assuming that dp/dt=kP, this theorem gives the following.
The relative growth rate is about 1.7% per year and the model is
<em>Year 1991 is equal in our formula to 41 and year 2020 is equal to 70. </em>Replacing,
Therefore the populaton in year 1991 will be of 5178.9 million of people and the population in year 2020 will be of 8524.60 million of people
Answer:
(A) 999 734 198.4
B) 9999043.54
C) the intensity L is squared when R is doubled
D) dR/dL = 1/(Lln10)
Step-by-step explanation:
R = (In L - ln Lo)/ ln 10
Since Lo = 1 and ln 1 = 0
Therefore,
R = ln L / ln 10
(A) Since R = 9
In L = Rln10
In L = 9 ln10 = 20.723
L = exp(20.723) = 999 734 198.4
Therefore, the intensity of earthquake in Japan = 999 734 198.4
(B) when R = 7
In L = Rln10
In L = 7ln10 = 16.118
L = exp(16.118) = 9999043.54
Therefore the intensity of earthquake in Haiti = 9999043.54
(C) when R is doubled, let say R = 14
L= exp(14ln10) = 99980871640000
Then the ratio of L(R=14) and L(R=7)
L(R=14)/L(R=7) = 99980871640000/9999043.54 = 9999043.53
Since L(R=14)/L(R=7) = L(R=7)
Therefore, the intensity L is squared when R is doubled
D) R = lnL/ln10
dR/dL = 1/(Lln10)
Given:
Amount of calories per 117.4 grams of Cereal X
<span> = 110 or </span>0.620068 per 1 gram of cereal X
Solution:
If there are 252.5 grams of cereal X then the amount of calories in it is computed as
0.620068 X 252.5
<span>156.5671 or 157 (rounded off)</span>