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almond37 [142]
2 years ago
9

Help me please I don’t understand

Mathematics
1 answer:
Mamont248 [21]2 years ago
7 0
For question between 13 -> 17 replace n with the number.

Example:  
13.) n = 2;  2+(-1) = 1
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Step-by-step explanation:

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2 years ago
Alice and Bob have two positive integers, x and y respectively, glued to their foreheads, so that each can read the other’s numb
vazorg [7]

Step-by-step explanation: |x − y| = 1, ok lets play as Alice, my number is y, and the bob number is x.

the condition says that x-y = 1 or x-y = -1.

so, if you know x, then y = 1 +y or y = y - 1. so you have two possibilities.

let's see two cases : first, let's suppose there are no code in the conversation. Then the only way of being shure of your number, is if one of them have the lowest positive number, so the other should have the next one. So if Bob have the number one, Alice knows for shure that she has the  2. Bob knows that she has a 2, but that means he could have a 1 or a 3, but when he sees that Alice is shure about her number, he knows that his number is the 1.

the second case is where the conversation may be a sort of code, saying a phrase x times and changing when x = the number of the other person, in this case, bob will have the 201 and alice the 202.

7 0
2 years ago
What is the standard form for 6.57 * 10
IrinaK [193]

Answer:

65.7

Step-by-step explanation:

Give hears please for how good the answer was

7 0
3 years ago
Which equation is true for the value b = 2?
Doss [256]
C is the correct answer
6 0
3 years ago
Read 2 more answers
Which number produces an irrational number when added to 0.4
gtnhenbr [62]
You didn't provide answer choices, but since 0.4=4/10 is rational, adding any irrational value to it will produce and irrational sum.

An irrational number is any number which can not be expressed as a fraction of two integers.
5 0
3 years ago
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