2 years ago

One yard of ribbon is 3.5 dollars. How much should one pay for 5/8 yards

Mathematics

2 answers:

Vesna [10]2 years ago

3 0

Answer:

Step-by-step explanation:

Genrish500 [490]2 years ago

3 0

38 dollars for 5/8 yards

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The lifetime of two light bulbs are modeled as independent and exponential random variables X and Y, with parameters lambda and

Scorpion4ik [409]

Answer:

$\bf h(x)=max(\lambda,\mu) e^{-max(\lambda,\mu) x}\;(x\geq0)$

Step-by-step explanation:

The PDF of X is

$\bf f(x)=\lambda e^{-\lambda x}\;(x\geq0)$

The PDF of Y is

$\bf g(x)=\mu e^{-\mu x}\;(x\geq0)$

The means of X and Y are respectively,

$\bf \displaystyle\frac{1}{\lambda}\;,\displaystyle\frac{1}{\mu}$

so we can see that the larger the parameter, the smaller the mean. Hence the PDF of Z = min(X, Y) is an exponential with the largest parameter of the two.

Therefore, the PDF of Z is

$\bf h(x)=max(\lambda,\mu) e^{-max(\lambda,\mu) x}\;(x\geq0)$

7 0

2 years ago

What’s the answer to this please? Thanks!

Serjik [45]

Answer:

beacuse (2x-35)+75=180
(2x-35)=105
2x=140
x=70

3 0

3 years ago

Please answer thank you!

vivado [14]

Answer:

Step-by-step explanation:

8 0

3 years ago

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Data management:<br><br> Find n if <br><br> C ( n+ 2 , 2 ) = 36

Lana71 [14]

Please, Karla, explain what "C" and "n" represent. Are you talking about combinations (for example, n+2 objects taken n at a time? Or is C some kind of function? I don't quite see the relationship of this problem to 'data management.'

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3 years ago

He sum of two numbers, x and y, is 12. the difference of x and two times y is 6. what are the values of x and y? x = 8, y = 4 x

Sveta_85 [38]

The last choice is correct

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2 years ago