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3 years ago

Solve for x in 2 - 3(x + 4) = 8

Mathematics

2 answers:

AysviL [449]3 years ago

7 0

Answer:

x = -6

Step-by-step explanation:

2 - 3(x + 4) = 8

=> 3(x + 4) = 2 - 8 = -6

=> x + 4 = -6/3 = -2

=> x = -2 - 4 = -6

neonofarm [45]3 years ago

6 0

x = 2

Step-by-step explanation:

2 - 3x - 12 = 8

=> 3x - 12 = 2 - 8

=> 3x - 12 = -6

=> 3x = 6

=> x = 2

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An urn contains 13 red balls and 7 blue balls. Suppose that three balls are taken from the urn, one at a time and without replac

d1i1m1o1n [39]

Answer:

0.749

Step-by-step explanation:

The probability that at least one of the three taken balls is blue is the inverse of the probability that none of the three taken balls is blue, aka all 3 of the taken balls are red. The probability of this to happen is

In the first pick: 13/20 chance of this happens

In the 2nd pick: 12/19 chance of this happens

In the 3rd pick: 11/18 chance of this happens

So the probability of picking up all 3 red balls is

$\frac{13*12*11}{20*19*18} = \frac{1716}{6840} = 0.251$

So the probability of picking up at least 1 blue ball is

1 - 0.251 = 0.749

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3 years ago

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4 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

3. What are complementary events?

BARSIC [14]

Answer:

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3 years ago

Read 2 more answers

If x/-2=18 then what is x equal to

Elodia [21]

Answer: X = -36

Step-by-step explanation:

X/-2 = 18 we need to get the variable alone, so we need to get rid of the /-2 to get x alone. And whatever we do to one side we have to do to the other so:

X/-2 = 18

X/-2 • (-2) = 18 • (-2)

The /-2 cancels out so we are left with

X = -36

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3 years ago