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ACT Aspire Math: Which of the Following Values is Rational? 7 Views
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Description:
Which of the following values is rational?
Transcript
- 00:03
Okay Aspiring math people Another drill question for you Here
- 00:06
we go Which of the following values is rational Wait
- 00:11
till you're married and you'll have that same question But
- 00:13
in a completely different context it's important to be able
- 00:17
to sift the rational number from the irrational ones right
Full Transcript
- 00:22
We wouldn't want to commit a perfectly sane imager to
- 00:25
the crazy house now would we Irrational numbers go to
- 00:28
an infinite number of decimal places It kind of like
- 00:31
someone who is bonkers going on on on on about
- 00:34
a bunch of totally unrelated topics Pi is a famous
- 00:37
one and it stays irrational even when it's added to
- 00:41
or multiplied by a rational number So get rid of
- 00:44
cnd based on this reasoning while five plus pie would
- 00:48
be something like eight point one four one five nine
- 00:51
blab above a block and pi squared would be mega
- 00:54
irrational right It's not an official math term but go
- 00:57
with us on it That leaves us with well the
- 00:59
to answer choices that feature square roots Anything that isn't
- 01:03
the square root of a perfect square is irrational so
- 01:06
that eliminates the root of five right there and well
- 01:10
be doesn't look like a perfect square but square root
- 01:13
and square cancel each other out So that leaves us
- 01:16
with just five which is boring but rational and you 00:01:20.79 --> [endTime] can share the blankets with it peacefully at night
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