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4 years ago

-2(x+5)=4 use distributive property

Mathematics

2 answers:

MAVERICK [17]4 years ago

6 0

Answer:

-2x - 10 = 4

Step-by-step explanation:

distributive property is were you distribute (give out) this to every one

(-2 time x) + (-2 times 5) = 4

-2x - 10 = 4

now solving for x all you do is add ten to both sides --> -2x = 14

now divide by -2 to get x alone --> x = 14/-2 = X = -7

Hatshy [7]4 years ago

3 0

Answer:x=-7

Step-by-step explanation:

-2(x)+(-2)(5)=4

-2x-10=4

-2x=14

x=-7

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3 years ago

In a shipment of 20 packages, 7 packages are damaged. The packages are randomly inspected, one at a time, without replacement, u

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Answer:

$\large\boxed{\large\boxed{0.119}}$

Explanation:

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$C(20,11)=\dfrac{20!}{11!\cdot(20-11)!}$

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c) The number of cominations in which 8 good packages can be choosen from 13 good pacakes is:

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$\dfrac{\dfrac{7!}{3!\cdot(7-3)!}\times \dfrac{13!}{8!\cdot(13-8)!}}{\dfrac{20!}{11!\cdot(20-11)!}}$

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The probability 12th package is damaged too is 7 - 3 = 4, out of 20 - 11 = 9:

3. Finally

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