SAT Math: Recognizing the Significance of an Exponent in a Word Problem
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What does the exponent suggest?
Product Type | SAT Math |
SAT | SAT Math |
SAT Math | Algebra and Functions Passport to Advanced Math |
Test Prep | SAT Math |
Transcript
be in units of years since the problems said the
rate of growth is annual and the whole exponents tells
us how many times we apply the rate of growth
Why to the starting value like experiments are all about
the times you compound something So if you see a
financial investment it's one plus point Oh eight minutes going
to grow at eight percent a year you're going to
see it written like that one plus point Oh wait
to whatever power like the seventh power means going compound
for seven years at eight percent and be whatever it
is at the end So in this case looking at
are jumbled arrangement of terms The fractions E over three
means that each year the population grows by one third
of the growth rate So actually it is A In
a short three years the population will grow by a
nice even Why on Hey we know that the growth
rate is two percent so you know that's why it's
gotta be a there right So if it really did
take one third of the year for the population to
grow wealthy exponents would be three Z Then he's gonna
work for B there This is the same as population
growing by two percent three times a year So get
rid of D An annual growth by two thirds of
a percent would require whitey equal point zero zero six
six seven in an exponents of just see So it
ain't any of those It's a It takes three years
for the population to grow by two percent It sounds 00:01:39.59 --> [endTime] like a really sleepy town