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2 years ago

Find the limit as x approaches 25: x-25 √x-5

Mathematics

1 answer:

yawa3891 [41]2 years ago

8 0

x - 25 = (√x)^2 - 5^2 = (√x - 5)(√x + 5)

Then

(x - 25)/(√x - 5) = √x + 5

and as x approaches 25, we get a limit of √25 + 5 = 5 + 5 = 10.

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Is this answer right?

lubasha [3.4K]

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REMEMBER: IF NOT APPLICABLE TO THE EQUATION YOU MAY SKIP THAT STEP IN PEMDAS .

3(8 - 2) + 4 = 22

Parentheses...

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(9)² ÷ 3 - 3³

Exponent....

9² ÷ 3 - 3³

In this case you have two exponents. Always apply the steps from left to right

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9² = 81

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Division...

81 ÷ 3 - 27

81 ÷ 3 = 27

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Subtraction...

27 - 27 = 0

<u>Your mistake: </u>

You subtracted 3 - 27 before dividing 81 by 3. Remember that according to the rules of PEMDAS division must come before subtraction

Hope this helped!

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