Friday, March 11, 2011

Mardi gras blog #1.

so last week we completed chapter 5 and took our super hard exam. anddddd we did aleks.

chapter 5 was pretty decent, logs are not THATTTTTTT bad but i guess i didnt know them as good as i thought.

writing in exponentials.
EXAMPLE.
log4 64=3
4^3=64.
^^that's your answer. soooooo easy.

there's some with word problems but im not very good at making up word problems much less making them with numbers that will actually give me a normal answer :(

FORMULAS:
a(t)=a0(1+r)^t
a0----your starting point.
r----your decimal number
t----time ( must match rate )
(used with percents)

a(t)=a0 b ^t/k
(used when doubling, halfing, tripling)

p(t)=P0e^rt
p0---starting point
r---rate as decimal
t---time
Keywords (continuously, compounding)

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