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3 years ago

Find minor arc in circle Include correct units

Mathematics

2 answers:

masha68 [24]3 years ago

5 0

Answer:

Same thing here Arc DE is also 100 degreese

cause the lines are connected to the center point.

Step-by-step explanation:

Finger [1]3 years ago

5 0

Answer:

$\frac{5\pi}{3} \: ft$

Step-by-step explanation:

$l = \frac{100 \degree}{360 \degree} \times 2\pi \: r \\ \\ = \frac{5}{18} \times 2\pi \: \times 3 \\ \\ = \frac{5\pi}{3} \: ft$

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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

3 years ago

What is x?

Dvinal [7]

Answer:

x= 3/17

Step-by-step explanation:

4x(2x+6) =8x^2(23-5)

8x^2 +24x = 144 x^2

24x = 136 x^2

24= 136 x

x=24/136

x=3/17

4 0

2 years ago

Which of the equations is proportional if y is a function of X?

Taya2010 [7]

Answer:

y=4x

Step-by-step explanation:

it goes through 0,0 on my graph

6 0

3 years ago

Can anyone answer this for me?

kramer

Answer:

$\frac{3}{2}$ π (or 270°)

Step-by-step explanation:

I use the trick with the coordinates.

(0, -1)

cos270° = 0 (the x-coordinate)

sin270° = -1 (the y-coordinate)

This trick works depending on the radius.

7 0

3 years ago

Evaluate f(x)= -x^2-4 for x = 3

Anna11 [10]

Answer:

f(3) = -13

Step-by-step explanation:

f(x)= - x²-4 (not (-x)²)

f(3) = - 3² - 4 = - 9 - 4 = -13

7 0

3 years ago

Read 2 more answers