Question

Which number is not in scientific notation?
9 ⋅ 1019
7.8 ⋅ 106
1.45 ⋅ 10−7
0.33 ⋅ 10−15

Answer 1

@Nnesha @kiamousekia @Preetha @campbell_st

Answer 2

@AsoundofHeaven

Answer 3

scientific notation requires a number between 1 and 10 then 10 to a power, which can be positive of negative

\[a \times 10^b\]

a is between 1 and 10 b can be a positive or negative power

Answer 4

so do you think its A?

Answer 5

ok... so is 9 between 1 and 10..?

Answer 6

yes

Answer 7

so that excludes A

what next...

Answer 8

so you have 3 choices left... which one...

Answer 9

uhmm

Answer 10

number one

Answer 11

ok, no i have no idea.

Answer 12

@campbell_st i dont knwo how to do any of theese.

Answer 13

@campbell_st HELP

Answer 14

you do realise there are exponents riht?

Answer 15

9 ⋅ 10^19
7.8 ⋅ 10^6
1.45 ⋅ 10^−7
0.33 ⋅ 10^−15

Answer 16

you have

A 9

B 7.8

C 1.45

D 0.33

which one of these numbers is not between 1 and 10...?

Answer 17

D

Answer 18

@campbell_st

Answer 19

so that's the correct answer

Answer 20

oh thanks

Answer 21

can u help me wif some more?

Answer 22

@campbell_st