2 years ago

A and B are independent events. P(A) = 0.50 and P(B) = 0.30. What is PA and B)?

Mathematics

1 answer:

katen-ka-za [31]2 years ago

5 0

Answer:

0.15

Step-by-step explanation:

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The temperature in minneapolis was -8 degrees F by noon the temperature has risen by 8 degrees F. What was the temperature by no

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0 degrees F. -8 + 8 equals 0.

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-1/6 + 2/3 (9 - 3/4) - 1/2 I’m confused if someone can help

emmainna [20.7K]

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4.83333333333

Step-by-step explanation:

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(b) dy/dx = (x - y+ 1)^2

Elanso [62]

Substitute $v(x)=x-y(x)+1$ , so that

$\dfrac{\mathrm dv}{\mathrm dx}=1-\dfrac{\mathrm dy}{\mathrm dx}$

Then the resulting ODE in $v(x)$ is separable, with

$1-\dfrac{\mathrm dv}{\mathrm dx}=v^2\implies\dfrac{\mathrm dv}{1-v^2}=\mathrm dx$

On the left, we can split into partial fractions:

$\dfrac12\left(\dfrac1{1-v}+\dfrac1{1+v}\right)\mathrm dv=\mathrm dx$

Integrating both sides gives

$\dfrac{\ln|1-v|+\ln|1+v|}2=x+C$

$\dfrac12\ln|1-v^2|=x+C$

$1-v^2=e^{2x+C}$

$v=\pm\sqrt{1-Ce^{2x}}$

Now solve for $y(x)$ :

$x-y+1=\pm\sqrt{1-Ce^{2x}}$

$\boxed{y=x+1\pm\sqrt{1-Ce^{2x}}}$

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3 years ago

The hair on your head grows 1/2 inch per month. Write the formula for that function

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Answer:

1/2x

Step-by-step explanation:

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2 years ago

Read 2 more answers

An editor has a stack of k documents to review. The order in which the documents are reviewed is random with each ordering being

ladessa [460]

Using the probability concept, it is found that there is a $\mathbf{\frac{1}{k}}$ probability that “Relaxation Through Mathematics” is first to review.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem:

There is a total of k documents to be reviewed, hence $T = k$ .
Of those documents, 1 is named “Relaxation Through Mathematics”, hence $D = 1$

The probability is:

$p = \frac{D}{T} = \frac{1}{k}$

A similar problem is given at brainly.com/question/24483829

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2 years ago