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3 years ago

Solve x(x-b)-2k=L for x

Mathematics

2 answers:

Arisa [49]3 years ago

7 0

X = (L + 2k)/(x - b). You have the correct answer selected

Leni [432]3 years ago

6 0

The third option. You already clicked on the right answer lol

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The yoga instructor earns$25 per class and $10 per student that shows up. They want to earn more than $385 teaching 6 classes th

Sedaia [141]

ANSWER: 24 people

All you have to do is multiply 25 and 6 to get 150. Then minus 150 from 385 to get 235. Then divide 235 by 10 to get 23.5, since you can not have half a person the answer is to round up to 24.

3 0

2 years ago

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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

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

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3 years ago

Pls pls pls help me i would appreciate if u help me

OlgaM077 [116]

Answer: I believe that the answer is B

Step-by-step explanation: The square root of 3 is an irrational number and 2 is a rational number thereby eliminating answer choices C and D. Thereafter, the product of the two numbers is 3.46410161514 which I believe to be an irrational number therefore eliminating A and B is your correct answer

5 0

3 years ago

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Solve for w: 2w<9+5w

sertanlavr [38]

Answer:

w > -3

Step-by-step explanation:

2w<9+5w

Subtract 5w from each side

2w-5w<9+5w-5w

-3w <9

Divide each side by -3 remembering to flip the inequality

-3w/-3 > 9/-3

w > -3

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3 years ago

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Which decimal represents the fraction of cats in this group that are black?

Lubov Fominskaja [6]

Since there are 8 total, and 4 is the amount to find as a fraction, we simply divide 4 by 8 to get 4/8

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3 years ago