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ACT Aspire Math Videos 91 videos
Given the following equation, what is x?)
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ACT Aspire Math: Approximating Square Roots 9 Views
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Description:
What is the approximate value of
?
Transcript
- 00:02
Okay C t s baring math There's another drill for
- 00:04
you Here we go What is the approximate value of
- 00:08
the square root of fifteen Please Well it's a number
- 00:16
fifteen is not a perfect square Taking its square rude
- 00:19
makes it angry and irrational Usually result gives us an
Full Transcript
- 00:22
infinite number of non repeating decimal places An irrational number
- 00:26
But we can still estimate in perfect square roots Right
- 00:29
Well the best strategy is to go through the squares
- 00:31
until he passed the number we want Once that happens
- 00:33
we know that we're close to the roots suffering since
- 00:35
three squared is nine were not in fifteen yet So
- 00:38
given that singers shot there like we said four square
- 00:40
to sixteen who too far But it's good enough for
- 00:43
our purposes because now we know the square root of
- 00:45
fifteen has to be between three and four and the 00:00:49.143 --> [endTime] answer is b that's it Bye
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