神马作文网英语翻译a bacteria culture initially contains 100 cells and grow
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/12 13:51:59
英语翻译
a bacteria culture initially contains 100 cells and grows at a rate proportional to its size.after an hour the population has increased to 420.
Find an expression for the number of bacteria after t-hours?
a bacteria culture initially contains 100 cells and grows at a rate proportional to its size.after an hour the population has increased to 420.
Find an expression for the number of bacteria after t-hours?
1个发酵培养基最初包含100个细胞,细胞的增长速度和它的个数成正比.
已知,一个小时后细胞的个数已增至420个.
找到一个t小时后,细菌个数的表达式.
设f(t)是所求的表达式,t > 0.
[ Let f(t) be the expression,t > 0]
f(0) = 100,f(1) = 420
f'(t) = af(t),
其中,a为常数.a > 0.
[where,a is a const,a > 0]
d[f(t)]/f(t) = adt,
ln|f(t)| = at + c,
|f(t)| = e^[at + c]
f(t) = de^[at],in which,d is a const.
100 = f(0) = de^[0] = d,
420 = f(1) = de^[a],e^a = 420/d = 420/100 = 4.2,a = ln(4.2)
f(t) = 100e^[ln(4.2)t] = 100[e^ln(4.2)]^t = 100(4.2)^t,t > 0.
已知,一个小时后细胞的个数已增至420个.
找到一个t小时后,细菌个数的表达式.
设f(t)是所求的表达式,t > 0.
[ Let f(t) be the expression,t > 0]
f(0) = 100,f(1) = 420
f'(t) = af(t),
其中,a为常数.a > 0.
[where,a is a const,a > 0]
d[f(t)]/f(t) = adt,
ln|f(t)| = at + c,
|f(t)| = e^[at + c]
f(t) = de^[at],in which,d is a const.
100 = f(0) = de^[0] = d,
420 = f(1) = de^[a],e^a = 420/d = 420/100 = 4.2,a = ln(4.2)
f(t) = 100e^[ln(4.2)t] = 100[e^ln(4.2)]^t = 100(4.2)^t,t > 0.
英语翻译a bacteria culture initially contains 100 cells and grow
英语翻译A culture for more embracing business leadership is grow
GMAT数学题,求救a certain culture of bacteria quadrupled every hou
the brain contains over one hundred billion cells-that is a
英语翻译1、Additive manufacturers keep bacteria and enzyme formul
英语翻译We report here a novel interaction between NK cells and
英语翻译A bus generally contains a set of control lines and a se
英语翻译翻译 A jar contains(装有)only red,green,and blue marbles(玻璃球
英语翻译Cells which can only grow in monolayers are regarded as
英语翻译There was a jail with 100 cells in it,all in a long row.
英语翻译Both the cerebral endothelial cells and the pericytes ar
It contains no A and B还是It contains no A or