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satela [25.4K]
3 years ago
10

In an assembly-line production of industrial robots, gearbox assemblies can be installed in one minute each if holes have been p

roperly drilled in the boxes and in ten minutes if the holes must be redrilled. Twenty gearboxes are in stock, 2 with improperly drilled holes. Five gearboxes must be selected from the 20 that are available for installation in the next five robots. a Find the probability that all 5 gearboxes will fit properly. b Find the mean, variance, and standard deviation of the time it takes to install these 5 gearboxes.

Mathematics
1 answer:
AnnyKZ [126]3 years ago
4 0

Answer:

Step-by-step explanation:

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The circle is inscribed in Triangle AEC. Which are congruent line segments
Harlamova29_29 [7]

Answer:

E-F and E-D

C-B and C-D

Step-by-step explanation:

The circle and triangle are as shown.  The options are:

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  • C-B and C-D

By drawing radius lines from the center of the circle to the tangent points B, D, and F, we can divide the triangle into 3 kites.  Therefore, only segments that are legs of the same kite are congruent.  So the answer must be E-F and E-D, and C-B and C-D.

6 0
3 years ago
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What is the answer ??
Olenka [21]

Answer:

35

Step-by-step explanation:

I don't know how to explain sorry

8 0
3 years ago
How to do this pls:( using PEMDAS
Kryger [21]

Answer: x y

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0 7

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7 0
3 years ago
I am simplifying radicals and I've come across one that has me a bit confused.
zhenek [66]

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The sqrt of m^4 is easy ... that's just  m^2 .

The other part is more messy.  There's not much you can do with it.

                      sqrt(34) = sqrt(17) times sqrt(2). 

That doesn't help make it any simpler.
You might as well just leave it as sqrt(34). 

Then the final, simplified form of the original expression is

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5 0
3 years ago
You roll a fair number cube and flip a coin at the same time. What is the probability that you roll a 5 and flip a heads?
Vikentia [17]

Answer:

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Step-by-step explanation:

4 0
2 years ago
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