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3 years ago

The decimal 0.3 can be written ad which fraction

Mathematics

2 answers:

Fed [463]3 years ago

7 0

The decimal 0.3 can be written as 3/10.

victus00 [196]3 years ago

7 0

Answer: The decimal 0.3 can be written as 3/10

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URGENT easy math multiple choice

Katyanochek1 [597]

Answer:

C) x = -1

Step-by-step explanation:

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3 years ago

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lara31 [8.8K]

Answer:

6. $\frac{29}{15}$ or 1 $\frac{14}{15}$

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3 years ago

A random variable X follows the uniform distribution with a lower limit of 670 and an upper limit of 750.a. Calculate the mean a

DENIUS [597]

You can compute both the mean and second moment directly using the density function; in this case, it's

$f_X(x)=\begin{cases}\frac1{750-670}=\frac1{80}&\text{for }670\le x\le750\\0&\text{otherwise}\end{cases}$

Then the mean (first moment) is

$E[X]=\displaystyle\int_{-\infty}^\infty x\,f_X(x)\,\mathrm dx=\frac1{80}\int_{670}^{750}x\,\mathrm dx=710$

and the second moment is

$E[X^2]=\displaystyle\int_{-\infty}^\infty x^2\,f_X(x)\,\mathrm dx=\frac1{80}\int_{670}^{750}x^2\,\mathrm dx=\frac{1,513,900}3$

The second moment is useful in finding the variance, which is given by

$V[X]=E[(X-E[X])^2]=E[X^2]-E[X]^2=\dfrac{1,513,900}3-710^2=\dfrac{1600}3$

You get the standard deviation by taking the square root of the variance, and so

$\sqrt{V[X]}=\sqrt{\dfrac{1600}3}\approx23.09$

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3 years ago

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g100num [7]

Answer:

1/221=0.0045

Step-by-step explanation:

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A polynomial function, f(x), has x-intercepts at (-6,0) and (2,0). What is one possible factor of f(x)? PLEASE GIVE STEPS

Mila [183]

Set
f
(
x
)
=
0
f(x)=0.
If the polynomial function is not given in factored form:
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x
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3 years ago