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77julia77 [94]
3 years ago
13

Plz Help :/ and Thank you...

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
7 0

Answer:

25c = t ??

Step-by-step explanation:

vladimir2022 [97]3 years ago
4 0

banana good for you

(i made this in 3d paint btw)

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HELP PLZZZZZ
viktelen [127]

Answer:

The last statement

7 0
2 years ago
Read 2 more answers
Suppose X has an exponential distribution with mean equal to 23. Determine the following:
e-lub [12.9K]

Answer:

a) P(X > 10) = 0.6473

b) P(X > 20) = 0.4190

c) P(X < 30) = 0.7288

d) x = 68.87

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

Mean equal to 23.

This means that m = 23, \mu = \frac{1}{23} = 0.0435

(a) P(X >10)

P(X > 10) = e^{-0.0435*10} = 0.6473

So

P(X > 10) = 0.6473

(b) P(X >20)

P(X > 20) = e^{-0.0435*20} = 0.4190

So

P(X > 20) = 0.4190

(c) P(X <30)

P(X \leq 30) = 1 - e^{-0.0435*30} = 0.7288

So

P(X < 30) = 0.7288

(d) Find the value of x such that P(X > x) = 0.05

So

P(X > x) = e^{-\mu x}

0.05 = e^{-0.0435x}

\ln{e^{-0.0435x}} = \ln{0.05}

-0.0435x = \ln{0.05}

x = -\frac{\ln{0.05}}{0.0435}

x = 68.87

5 0
3 years ago
Jingle Corporation produces toy footballs. Each football sells for $9.95 with a variable unit cost of $7.10. Assuming a fixed co
AlekseyPX
They basically make a profit of $2.85. Because $9.95 - $7.10 = $2.85.

To break even you would have to sell 4000 footballs. Because 11,400 / 2.85 = 4000. 
8 0
3 years ago
I NEED HELP WITH THIS ASAP I CAN NOT FIND ANY COMMON GROUND FOR THESE NUMBERS ALL HELP IS APPRECIATED THANK YOU
poizon [28]

Answer:

45 is um 9x+xy-4y

Step-by-step explanation:

I did it it was a simplify type thing

3 0
2 years ago
Sony brother is 8 year older than four fifth her age. if her brothers age is 32 years what is sony
madam [21]

Answer:

I would say Sony's age is 33 because 4/5 of 32 is about 25 then 25+8=33

Hope I helped :)

3 0
2 years ago
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