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Vladimir79 [104]
3 years ago
9

6. Find the value of x. A.30 B.25 C.35 D.20

Mathematics
1 answer:
alexgriva [62]3 years ago
5 0

Answer:

20 degrees

Step-by-step explanation:

Every other angle is wider than this angle on a protractor.

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A box contain 12 balls in which 4 are white 3 are blue and 5 are red.3 balls are drawn at random from the box.find the chance th
Anastasy [175]

Answer:

3/11

Step-by-step explanation:

From the above question, we have the following information

Total number of balls = 12

Number of white balls = 4

Number of blue balls = 3

Number of red balls = 5

We solve this question using combination formula

C(n, r) = nCr = n!/r!(n - r)!

We are told that 3 balls are drawn out at random.

The chance/probability of drawing out 3 balls = 12C3 = 12!/3! × (12 - 3)! = 12!/3! × 9!

= 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/(3 × 2 × 1) × (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)

= 220 ways

The chance of selecting 3 balls at random = 220

To find the chance that all the three balls are selected,

= [Chance of selecting (white ball) × Chance of selecting(blue ball) × Chance of selecting(red balls)]/ The chance/probability of drawing out 3 balls

Chance of selecting (white ball)= 4C1

Chance of selecting(blue ball) = 3C1 Chance of selecting(red balls) = 5C1

Hence,

= [4C1 × 3C1 × 5C1]/ 220

= 60/220

= 6/22

= 3/11

The chance that all three are selected is = 3/11

4 0
3 years ago
I work in a warehouse, I pick 30 lines in 30 minutes. how many lines total will that be for 8 hours​
lakkis [162]
In 1 hour you pick 60 lines, so in 8 hours you pick 60*8 = 480 lines
7 0
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The fourth-grade class donated 750 bottles of water for a 5K run. After the run, there were 89 bottles left. How many bottles of
densk [106]

Answer:

The runners drank 661 bottles of water.

Step-by-step explanation:

Subtract 661 from 750, and you are left with 89.

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Solve for x. Round answer to the nearest tenth. Submit 20 27​
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Answer: 115.6

Step-by-step explanation:

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Using the distributive property to write an equivalent expression,
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