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yKpoI14uk [10]
3 years ago
7

In a group of 50 patrons, 8 patrons like lattes and espressos, 12 patrons like espressos and cappuccino, 9 patrons like lattes a

nd cappuccinos and 5 patrons like all 3 coffeee drinks, all together 20 patrons like lattes, 28 patrons like espressos, and 19 patrons like cappuccinos. How many patrons don't like any of these coffee drinks?
Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
8 0
I THINK THE ANSWER IS 16 IM NOT 100% sure
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The taxiways and runways of a major airport are carefully monitored to expedite takeoffs and landings and to prevent collisions.
tatyana61 [14]

Answer:

18.04% probability that exactly 3 serious deviations and incursions will occur at LAX in a randomly selected year

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

Suppose the mean number of deviations and incursions per year at the Los Angeles International Airport (LAX) is 2.

This means that \mu = 2

Find the probability that exactly 3 serious deviations and incursions will occur at LAX in a randomly selected year

This is P(X = 3).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 3) = \frac{e^{-2}*2^{3}}{(3)!} = 0.1804

18.04% probability that exactly 3 serious deviations and incursions will occur at LAX in a randomly selected year

4 0
3 years ago
-7x - 6у = 4<br> x = -3y + 8<br> Solve the system if equations<br> X=?<br> Y=?
Gala2k [10]

Answer:

(x, y) = ( -4 , 4)

Step-by-step explanation:

STep 1: substitute the given value of x into the equation -7 x - 6y = 4 which will be -7 (-3 y + 8) - 6 y = 4

STEP 2: solve the equation for y so basically -7 (-3 y + 8) - 6 y will be y = 4

STEP 3:substitute the given value of x into the equation so y = 4 would be

x = -3 x 4 + 8

STEP 4: solve the equation for x.  -3 x 4 + 8 which you'd end up with x = -4

6 0
3 years ago
What is the slope of the line that contains the points (5, 5) and (8, 3)?
alexgriva [62]

Slope = (Y2 - Y1) / (X2 - X1)

Slope = (5 - 3) / (5 - 8) = 2/-3 = -2/3

Answer: (B) -2/3

5 0
3 years ago
There are three car salespeople at the local car dealership. The table below shows how many cars each salesperson has sold. Help
drek231 [11]

Answer:

A. Ronald

Step-by-step explanation:

Divide the years of employment by cars sold. The highest number is your answer

7 0
3 years ago
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Someone help me with math problems ASAP!!!!!
Nonamiya [84]

Answer:

9 1/3

Step-by-step explanation:

4 0
4 years ago
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