Question

Which number is not in scientific notation?
1.1 ⋅ 10213
7.8 ⋅ 108
3.02 ⋅ 10−10
35 ⋅ 104

Answer 1

@Michele_Laino can you please help me with this ?

Answer 2

hint:
a number written using scientific notation has only one unit figure, for example, the subsequent number is written using scientific notation:
\[\large 6.62 \cdot {10^{ - 27}}\]

Answer 3

okay

Answer 4

so, what is the right option?

Answer 5

idk im confused

Answer 6

int:
the integer portion of a number, which is written using the scientific notion, has only one figure, which is the unit figure, now, the integer part of 35, for last number, is composed by two figures

Answer 7

hint*

Answer 8

1.1 is an integer number with 1 integer figure
7.8 is an integer number with 1 integer figure
3.02 is an integer number with 1 integer figure
35 is an integer number with 2 figures

Answer 9

sorry im back

Answer 10

i still dont understand this

Answer 11

wait so the one with 2 figures is not scientific notation

Answer 12

a number is written in scientific notation, when it is like this:
\[\Large 6.62 \cdot {10^{ - 27}}\]
now, among the numbers which you have provided, what is the one which is not written in that form?

Answer 13

D the last one

Answer 14

a number written using scientific notation has only one figure at the left of decimal point

Answer 15

so, correct!

Answer 16

gosh pre- algebra is difficut to me.

Answer 17

well kind of

Answer 18

for example, the subsequent number:
\[\Large 258 \cdot {10^{ - 28}}\]
is written using scientific notation?
@Marc1313