3 years ago

A box contains six black balls and four white balls.

1 answer:

5 0

B) 6/10.

For probability questions, it is just the sum of the object you need to find, over the total sum of all objects.

Hope this helps!

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You are in charge of monitoring the pressure of a compressed air tank in a processing plant. After repeating the pressure measur

Anastasy [175]

Answer:

11.5

Step-by-step explanation:

Given that :

I am in charge of the pressure reading in a compressed air tank of a processing plant.

The Gaussian distribution having a mean value = 69 psi

Standard deviation = 10 psi

Here we have to find the probability that the pressure will exceed 84 psi.

So,

$P(X \geq 84) = P \left(\frac{X - 69}{10} > \frac{84-69}{10} \right)$

$=P(Z > 1.5)$

$=1-P(Z < 1.5)$

= 0.115

= 11.5

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3 years ago

Karen is waiting for a pot of soup to cool

Studentka2010 [4]

Answer:

It went down 5.5°C a minute.

Step-by-step explanation:

You have to look for the difference of 100 and 78, which is 22.

Divide the difference with the minutes (4), equalling 5.5.

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3 years ago

Find the diameter of the sphere with the volume of 36 pi cubic units

kobusy [5.1K]

Answer:

${ \tt{volume = \frac{4}{3} \pi {r}^{3} }} \\ 36\pi = \frac{4}{3} \pi \times {(2d)}^{3} \\ \frac{36 \times 3}{4} = 8 {d}^{3} \\ 27 = 8 {d}^{3} \\ {d}^{3} = \frac{27}{8} \\ diameter = 1.5 \: units$

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3 years ago

Find X: I need to solve for X

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Answer:

Step-by-step explanation:

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Lucy went for a drive in her new car. She drove for 3 hours at a speed of 37.5 miles per hour. For how many miles did she drive?

zimovet [89]

Answer:

She drove a 122.5 miles

Step-by-step explanation:

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