Answer:
The number of half acres plots are 850 .
Step-by-step explanation:
As given
Mr. george owns 425 acres of land.
if he divides the land into half-acre plots .
Let us assume that the numbers of half - acres plots are x .
Than the equations are
solving the above
x = 2 × 425
x = 850
Therefore the number of half acres plots are 850 .
Answer:
35
Step-by-step explanation:
subtract highest and lowest numbers
Answer:
B.1
Step-by-step explanation:
Answer:
a) y = 4e^(0.06t)
b) 0.06
c) 11.55 hours
d) 6.9 million
Step-by-step explanation:
When the growth rate (millions per hour) is proportional to the number (millions), the relationship is exponential. The growth rate is the constant of proportionality.
a) Formula for y(t):
y = 4e^(0.06t)
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b) The growth constant is 0.06, the multiplier of t in the exponential function. It is the constant of proportionality in the given differential equation:
y' = 0.06y.
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c) The doubling time is found from ...
2 = e^(0.06t) . . . the multiplying factor is 2 to double the original number
ln(2) = 0.06t . . . . taking natural logs
ln(2)/0.06 = t ≈ 11.55 h . . . . doubling time
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d) Put t=9 into the formula from part (a). After 9 hours, there will be ...
y(9) = 4e^(0.06·9) ≈ 6.9 . . . . million bacteria present