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2 years ago

Find the average of the following set of numbers 11,14,25,-7,-9

Mathematics

1 answer:

lord [1]2 years ago

8 0

11+14+25+-7+-9=34 34/5= 6.8

6.8 is the average

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What is the area I am very confused

miss Akunina [59]

Area = b × h
so 5 x 5
which is 25

5 0

2 years ago

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A travelling salesman sells milkshake mixing machines and on average sells 8.9 machines per month. He needs to sell at least 3 m

Goshia [24]

Answer:

0.67% probability he will have to shut down after this month

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.

On average sells 8.9 machines per month.

So $\mu = 8.9$

Using the Poisson distribution, what is the probability he will have to shut down after this month

If he sells less than 3 machines.

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)$

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

$P(X = 0) = \frac{e^{-8.9}*8.9^{0}}{(0)!} = 0.0001$

$P(X = 1) = \frac{e^{-8.9}*8.9^{1}}{(1)!} = 0.0012$

$P(X = 2) = \frac{e^{-8.9}*8.9^{2}}{(2)!} = 0.0054$

$P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0001 + 0.0012 + 0.0054 = 0.0067$

0.67% probability he will have to shut down after this month

5 0

2 years ago

Multiply the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending pow

ycow [4]

It's just a^3...
You can check to see if this's right

5 0

2 years ago

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Find the area of obtuse triangle ABC when A=41 degrees, a=18cm, and b=22cm.

solniwko [45]

Answer:

36 cm²

Step-by-step explanation:

cos A= (`sqrt(b)` + `sqrt(c)` - `sqrt(a)`)/(2bc)

⇒c ≈ 5 cm

Sabc= (1/2)bcsin A ≈ 36 cm²

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2 years ago

Help please need asap

DIA [1.3K]

Answer:

Options D & E

Step-by-step explanation:

In D option, putting-3y in brackets ( ) doesn't bring any change.

In option E, -(-7x) equals to +7x, hence, remaining the same.

Hope it helps :)

5 0

2 years ago