MATHEMATICS COLLEGE

Twenty air-conditioning units have been brought in for service. Twelve of them have broken compressors, and eight have broken fans. Seven units are chosen at random to be worked on. What is the probability that three of them have broken fans

Answers

Answer 1

Answer:

Answer: 0.3576

Step-by-step explanation:

Let the probability that the units that have broken fans from the seven units chosen at random be x.

The probability that three of them have broken fans will be 0.3576. Check the attachment for details

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What is the problem for this Problem?
Find the equation for the line containing the points (-2,-5) and (6,3)

Geometry, 1 question

Answers

It’s b trust me bro

Can anyone please help me under this and what I'm supposed to do. Thank you in advance

Answers

Answer:

n = 31

Explanation:

Solve the equation by rewriting in exponential form using the definition of logarithm and simplifying. In other words, solve for n.

What is the radius of a sphere with a volume of 572 cm", to the nearest tenth of a
centimeter?

Answers

Answer:

The radius of a sphere with a volume of 572 cm^3 is 5.15 cm

Step-by-step explanation:

We need to find the radius of a sphere whose volume is: 572 cm^3

The formula used will be: $Volume=(4)/(3) \pi r^3$

Putting value of Volume =572 and π=3.14 we can find radius (r) of a sphere.

$Volume=(4)/(3) \pi r^3\n572= (4)/(3)*3.14*r^3\n572=4.187*r^3\nr^3=(572)/(4.187)\nr^3=136.613\nTaking \ cube \ root \ on \ both \ sides:\n\sqrt[3]{r} =\sqrt[3]{136.613} \nr=5.15 \ cm$