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Math Videos 91 videos

ACT Aspire Math: Solving for x when It's in the Denominator
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Given the following equation, what is x?)

ACT Aspire Math: Comparing Cost per Pound of Hello Kitty Candy
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At the local candy store down the street, three pounds of Hello Kitty gummy treats cost $6.42. At the candy store across town, five pounds of Hello...

ACT Aspire Math: How Many Hundredths Are There in Four Tenths?
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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

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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