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zhuklara [117]
3 years ago
7

Square Roots: 2(x + 1) - 10 = -28​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0

Answer:

x = -10

Step-by-step explanation:

2(x + 1) - 10 = -28

2 * x = 2x

2 * 1 = 2

2x + 2 - 10 = -28

Combine like terms

-10 + 2 = -8

2x - 8 = -28

   +8     +8

2x = -20

----    -----

2        2

x = -10

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Answer:

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Step-by-step explanation:

The base AB is twice the length of the midsegment CD.

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2 years ago
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2 years ago
During a sale, a shop offered a discount of 10% on the marked prices of all the items. What
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Answer:

₹2835

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Answer:

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P(8 arrive) = (0.56)^8 = 0.00967

- Let's do part c before part b. For this, we want an exact booking, which means that exactly 7 of the 8 non-regular customers arrive for the flight. Suppose we align these 8 people in a row. Take the scenario that the 1st person didn't arrive and the remaining 7 did. That odds of that happening would be (1-.56)*(.56)^7.

Now take the scenario that the second person didn't arrive and the remaining 7 did. The odds would be  

(0.56)(1-0.56)(0.56)^6 = (1-.56)*(.56)^7. You can run through every scenario that way and see that each time the odds are the same. There are a total of 8 different scenarios since we can choose 1 person (the non-arriver) from 8 people in eight different ways (combination).  

So the overall probability of an exact booking would be [(1-.56)*(.56)^7] * 8 = 0.06079

- The probability that the flight has one or more empty seats is the same as the probability that the flight is NOT exactly booked NOR is it overbooked. Formally,  

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Note that, the chance of being both overbooked and exactly booked is zero, so we don't have to worry about that.

Hope that helps!

Have a great day :P

7 0
3 years ago
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