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denis23 [38]
3 years ago
10

Tell whether each relation is a function

Mathematics
1 answer:
rjkz [21]3 years ago
3 0

Answer:

it's not a function

Step-by-step explanation:

there are two 9 x axis with different y values

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Step-by-step exlanation:

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What is the following difference 11 sqrt 45 - 4 sqrt 5
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Answer:

29*sqrt(5)

Step-by-step explanation:

Start with sqrt (45). You must reduce it to it's prime factors.

45: 9 * 5            9 is not prime so reduce it.

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When you write √45, you should replace it with √(3*3*5)

The rule is

Rule: when you have a pair of equal prime factors under a root sign, you can take one out and throw one away.

Rule 2: If there are an odd number of equal primes one of them will be left underneath the root sign.

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11sqrt(45) - 4 sqrt(5)              Substitute for 45

11*3*sqrt(5) - 4sqrt(5)            Take out sqrt(5) using the distributive property.

(11*3 - 4)*sqrt(5)                      Combine 11 * 3  

(33- 4) * sqrt(5)                       Do the subtraction

29 * sqrt(5)                             Answer

6 0
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Step-by-step explanation:

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