3 years ago

Rewrite using standard notation: 0.003

Mathematics

2 answers:

miv72 [106K]3 years ago

7 0

In scientific notation it would be

3 x 10 ^-3

(reading: three times ten to the negative third power)

ivanzaharov [21]3 years ago

4 0

It would be .3 i think if you are talking about scientific notation :)

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Use the arithmetic sequence of numbers 1, 3, 5, 7, 9,.to find the following:

Rasek [7]

$a)\\\\
a_{n+1}-a_n=d\\
for\ n=1\\
a_2-a_1=d\\
d=3-1=2\ - difference\ between\ two\ consecutive\ terms\\\\
b)\\
a_n=a_1+(n-1)d\\
n=101\\
a_{101}=1+(101-1)*2\\
a_{101}=1+100*2=200+1=201\\\\
c)\\
Sn=\frac{a_1+a_n}{2}*n\\
n=20\\
a_n=a_{20}=1+(20-1)*2=1+38=39\\
Sn=\frac{1+39}{2}*20=400\ \ Sum\ of\ the\ first\ 20 \ numbers.$