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monitta
4 years ago
7

An urn contains 6 red and 7 black balls. 4 balls are randomly drawn from the urn in succession, with replacement. That is after

each draw, the selected ball is returned to the urn. What is the probability that all 4 balls drawn from the urn are black ? Round your answer to three decimal places.
Mathematics
1 answer:
Nataly [62]4 years ago
7 0

Answer:

0.538

Step-by-step explanation:

There are 13 balls in the urn

  • 7 are black and 6 are red

There are 7 chances out of 13 to pick a black ball

  • 7/13
  • 7 ÷ 13 = 0.53846.....

Round and get:

  • <u>0.538</u>
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What is the y-coordinate of point D after a translation of (x, y) ? (x + 6, y – 4)?
Mandarinka [93]

Answer:

Y-coordinate = y - 4

Step-by-step explanation:

In the given question point D coordinate is (x, y)

and D after translation

x goes to 6 unit to the right and y goes to 4 unit down.

Hence,

          Y-coordinate = y-4

Example:From graph

              Let point D coordinate (x , y) = (2 , 3)

After rotation

              D coordinates is (x+6 , y-4) = (2+6 , 3_4) = (8 , -1)


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3 years ago
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18 is what percent of 30
Eva8 [605]
It is 60% because 18/30=0.6
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3 years ago
A city park has 4 splash pads. Each splash pad is in the shape of a parallelogram with a base of 5.4 meters and a height of 3.8
Reika [66]
Using the formula for area for a parallelogram, A=BH, where A is area, B is Base, and H is height, you follow that. So in this case, you would want to find one of the area's then multiply it by 4. So for the area you get 20.52 meters. If you multiply it by 4, you get 82.08 meters. Have a nice day!
4 0
4 years ago
Question 9 - (3 marks available)
finlep [7]

Answer: a) 1,600

              b) 35,000

              c) 120,000

<u>Step-by-step explanation:</u>

First, round each number to one significant digit (the first digit).

Then multiply them.

a) 17   --> rounds to 20

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c) 207   --> rounds to 200

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6 0
3 years ago
X to the power of 3 = 125 <br> what is X?
asambeis [7]

Answer:

x = 5

Step-by-step explanation:

x³ = 125

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