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Nataly_w [17]
3 years ago
11

Can you help me find the B plzzz

Mathematics
2 answers:
UNO [17]3 years ago
8 0

Answer:

B=80

Step-by-step explanation:

B is the same answer as the number on the other side

Vikentia [17]3 years ago
3 0
Answer: B= 80

B is the same answer as the other number
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The following table represents the sample space of rolling two number cubes.
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We just need to count the number of outcomes that have exactly one even number. The total number of outcomes is 36. We see that from the first row, the number of outcomes that qualify are 3: 1-2, 1-4, 1-6 (out of the 6 total outcomes). For the 2nd row, again there are 3: 2-1, 2-3, 2-5. It is obvious by now that for any row, whether the number is even or odd, there are 3 outcomes on that row that correspond to rolling exactly one even number. Hence, there are in total 6*3=18 favorable outcomes.
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Step-by-step explanation:

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3 years ago
Prove that the statement (ab)^n=a^n * b^n is true using mathematical induction.
mamaluj [8]

Answer:

see below

Step-by-step explanation:

      (ab)^n=a^n * b^n

We need to show that it is true for n=1

assuming that it is true for n = k;

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( ab) ^1 = a^1 * b^1

ab = a * b

ab = ab

Then we need to show that it is true for n = ( k+1)

or (ab)^(k+1)=a^( k+1) * b^( k+1)

Starting with

  (ab)^k=a^k * b^k    given

Multiply each side by ab

ab *  (ab)^k= ab *a^k * b^k

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Therefore, the rule is true for every natural number n

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3 years ago
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