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yan [13]
3 years ago
6

What is D divided by z

Mathematics
2 answers:
anastassius [24]3 years ago
4 0

Answer:

D/z

Step-by-step explanation:

Since D and z are variables, we can express the division as a fraction:

D/z

horsena [70]3 years ago
3 0

Answer:

Can you please give more context so i can help you?

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Lemons tastes sour to some people. This sourness is inherited through the TAS2R38 gene. About 65% of the population has this gen
Minchanka [31]

Answer:

We are given:

\hat{p}=0.65

Margin of error E=0.02

Confidence level = 0.99

We need to find the sample size to estimate the proportion of people who carry the TAS2R388 gene.

The formula for finding the sample size is:

n=\hat{p} (1-\hat{p})\left (\frac{z_{\frac{0.01}{2}}}{E} \right )^{2}

Where:

z_{\frac{0.01}{2}}=2.576 is the critical value at 0.01 significance level.

Therefore, the required sample size is:

n=0.65(1-0.65) \left(\frac{2.576}{0.02} \right)^{2}

      =0.2275 \times 16589.44

      =3774.1 \approx 3774

Therefore, the required sample size is 3774


3 0
3 years ago
Whats 119200/100000 in a proper fraction and is it closer to 0,1,2, or 3
sesenic [268]
119200/100000

move the decimal place to the left 5 times.

1.192 = 1 \frac{24}{125}

It is much closer to 1
7 0
2 years ago
24 13/1,000 as a decimal number
Tems11 [23]

Answer:

24.013.

Step-by-step explanation:

Simplify: 24 13/1,000 = 24013/1000. Than just use a calculator to make it into a decimal.

4 0
3 years ago
Jack has $25 to spend at the mall. Write an inequality that expresses symbolically The amount of money, m, that jack can spend
astraxan [27]
25 >= m

m is the money that Jack can spend.
when i put ">=" i meant greater than or equal to.
3 0
2 years ago
Read 2 more answers
(D^2 +2D +1)y=e^-x log(x) solve using method variation of parameter?
Ad libitum [116K]
First you'll need the complementary solutions. The characteristic equation for this ODE is

D^2+2D+1=(D+1)^2=0\implies D=-1

with multiplicity 2. This means two linearly independent solutions will be y_1=e^{-x} and y_2=xe^{-x}.

Via variation of parameters, the particular solution will take the form

y_p=y_1u_1+y_2u_2

where

u_1=-\displaystyle\int\frac{y_2e^{-x}\log x}{W(y_1,y_2)}\,\mathrm dx
u_2=\displaystyle\int\frac{y_1e^{-x}\log x}{W(y_1,y_2)}\,\mathrm dx

The Wronskian is

W(y_1,y_2)=\begin{vmatrix}e^{-x}&xe^{-x}\\-e^{-x}&e^{-x}(1-x)\end{vmatrix}=e^{-2x}(1-x)+xe^{-2x}=e^{-2x}

So, you have

u_1=-\displaystyle\int\frac{xe^{-x}e^{-x}\log x}{e^{-2x}}\,\mathrm dx
u_1=-\displaystyle\int x\log x\,\mathrm dx
u_1=\dfrac14x^2-\dfrac12x^2\log x

and

u_2=\displaystyle\int\frac{e^{-x}e^{-x}\log x}{e^{-2x}}\,\mathrm dx
u_2=\displaystyle\int\log x\,\mathrm dx
u_2=x(\log x-1)

So the solution to the ODE is

y=C_1y_1+C_2y_2+y_1u_1+y_2u_2
y=(C_1+C_2x)e^{-x}+\left(\dfrac14x^2-\dfrac12x^2\log x\right)e^{-x}+(\log x-1)x^2e^{-x}
y=(C_1+C_2x)e^{-x}+\dfrac14x^2e^{-x}(2\log x-3)
3 0
3 years ago
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