Question

Express your answer in scientific notation. 1.8 \cdot 10^{-2} - 3.9 \cdot 10^{-3} =1.8⋅10 −2 −3.9⋅10 −3 =1, point, 8, dot, 10, start superscript, minus, 2, end superscript, minus, 3, point, 9, dot, 10, start superscript, minus, 3, end superscript, equals

Answer 1

ꜱᴄɪᴇɴᴄᴇ, ᴀɴʏ ꜱʏꜱᴛᴇᴍ ᴏꜰ ᴋɴᴏᴡʟᴇᴅɢᴇ ᴛʜᴀᴛ ɪꜱ ᴄᴏɴᴄᴇʀɴᴇᴅ ᴡɪᴛʜ ᴛʜᴇ ᴘʜʏꜱɪᴄᴀʟ ᴡᴏʀʟᴅ ᴀɴᴅ ɪᴛꜱ ᴘʜᴇɴᴏᴍᴇɴᴀ ᴀɴᴅ ᴛʜᴀᴛ ᴇɴᴛᴀɪʟꜱ ᴜɴʙɪᴀꜱᴇᴅ ᴏʙꜱᴇʀᴠᴀᴛɪᴏɴꜱ ᴀɴᴅ ꜱʏꜱᴛᴇᴍᴀᴛɪᴄ ᴇxᴘᴇʀɪᴍᴇɴᴛᴀᴛɪᴏɴ. ɪɴ ɢᴇɴᴇʀᴀʟ, ᴀ ꜱᴄɪᴇɴᴄᴇ ɪɴᴠᴏʟᴠᴇꜱ ᴀ ᴘᴜʀꜱᴜɪᴛ ᴏꜰ ᴋɴᴏᴡʟᴇᴅɢᴇ ᴄᴏᴠᴇʀɪɴɢ ɢᴇɴᴇʀᴀʟ ᴛʀᴜᴛʜꜱ ᴏʀ ᴛʜᴇ ᴏᴘᴇʀᴀᴛɪᴏɴꜱ ᴏꜰ ꜰᴜɴᴅᴀᴍᴇɴᴛᴀʟ ʟᴀᴡꜱ. ꜱᴄɪᴇɴᴄᴇ.

⤵️Follow Me...

Answer 2

Answer: 1.41 x 10^-2

Step-by-step explanation:

1.8 x 10^-2 - 3.9 x 10^-3

18 x 10^-3 - 3.9 x 10^-3

(18 - 3.9) x 10^-3=

14.1 x 10^-3

1.41 x 10^-2