Inactive Tutor answered • 07/15/15
Tutor
New to Wyzant
To get the approximation, you can use a calculator. The result will be in decimal form with many significant digits after the decimal point.
Jake P.
asked • 07/15/15solve this as soon as you can or possible :D
An expression is shown.
8√27
Which value is the best approximation for this expression?
8√27
Which value is the best approximation for this expression?
More
2 Answers By Expert Tutors
Susan S. answered • 07/15/15
Tutor
5.0
(846)
Applied Mathematics Tutor with over 25 years in Electrical Engineering
The 27 under the square root sign can be expressed as 9*3. Since 9 = 32 then √27 = √(32*3) = 3√3
Therefore 8√27 = 8*3√3 = 24√3
I leave the approximation to you!
Inactive Tutor
You gave the exact value. The student needs the approximate value.
Report
07/15/15
Susan S.
tutor
Since the student didn't give any information about the "best approximation", I can't help beyond an exact answer. I assume there's a multiple answer question and the final answer will depend on what place value the question requires. You are right that a calculator will help in this instance unless the student happens to have memorized an appropriate approximation of the square root of 3.
Report
07/15/15
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Jake P.
07/15/15