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sveta [45]
3 years ago
10

What's the answer to number two

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0
You have to show more of the paper so i can calculate it. Sorry
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In a shipment of 71 vials, only 13 do not have hairline cracks. If you randomly select 2 vials from the shipment, what is the pr
yanalaym [24]

Answer:

0.0313

Step-by-step explanation:

Given that in the shipment of 71 vials, only 13 do not have hairline cracks

Probability of not having a hairline cracks = \frac{13}{71}

If you randomly select 2 vials from the shipment

(Probability of not having a hairline cracks)' = \frac{13-1}{71-1} = \frac{12}{70}

what is the probability that none of the 2 vials have hairline cracks.

i.e (\frac{13}{71}) * (\frac{12}{70})

= 0.183 × 0.171

= 0.0313

Hence, the probability that none of the 2 vials have hairline cracks = 0.0313

6 0
3 years ago
Solve −3x2 + 30x − 90 = 0. x equals 5 plus or minus 2i square root of 5 x equals 5 plus or minus i square root of 5 x equals 10
Tcecarenko [31]
The x in your equation is 16/5 or 3 1/5 or 3.2 if you want it simplified 
5 0
2 years ago
Read 2 more answers
Show how to simplify this problem using the distributive property. <br> 4(12 + 6)
Sunny_sXe [5.5K]

Hey there!

4(12 + 6)

4(12) + 4(6)

4(12) = 48

4(6) = 24

48 + 24 = ?

48 + 24 = 72

Answer: 72 ☑️

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

5 0
3 years ago
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Write equations for the horizontal and vertical lines passing through the point (-2,-5).
erastova [34]

Answer:

  • y = -5
  • x = - 2

=============================

The horizontal line has same y- coordinate for each x- coordinate, and is parallel to the x-axis so it is:

  • y = - 5

The vertical line has same x- coordinate for each y- coordinate, and is parallel to the y-axis so it is:

  • x = - 2

<em>Refer to graphs.</em>

6 0
1 year ago
6. The exact radius of a circle is 2cm. A measurement error showed the
pashok25 [27]
I think it’s 0.25:)
7 0
3 years ago
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