I'm on Divisions by eights pls help me I really need it

Mathematics

2 answers:

Grace [21]3 years ago

6 0

8 divided by 24 is 3

Gekata [30.6K]3 years ago

5 0

#1=2 #2=5 #3=12 #4=4 #5=10 #6=3 #7=6 #8=7 #9=8 #10=1 #11=10 #12=7 #13=3 #14=12 #15=8 #16=5 #17=1 #18=4 #19=2 #20=6 #21=5 #22=1 #23=3 #24=6 #25=4 #26=12 #27=2 #28=5 #29=7 #30=8

I hope this helps.

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(8.08×10^-10)÷(4.0×10^-3) in scientific notation?

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Answer:

$\large\boxed{2.02\times10^{-7}}$

Step-by-step explanation:

The scientific notation:

$a\cdot10^k\\\\1\leq a$

We have:

$(8.08\times10^{-10})\div(4.0\times10^{-3})\\\\=\dfrac{8.08\times10^{-10}}{4.0\times10^{-3}}\\\\=\dfrac{8.08}{4}\times\dfrac{10^{-10}}{10^{-3}}\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\=2.02\times10^{-10-(-3)}\\\\=2.02\times10^{-7}$