4 years ago

Can anyone help plss

Mathematics

1 answer:

love history [14]4 years ago

5 0

Answer:

what do u need help with

Step-by-step explanation:

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r-ruslan [8.4K]

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4 years ago

a farmers packs 46 apples into trays for market.Each tray holds 6 apples.how many apples are in partially filled tray

denis23 [38]

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3 years ago

What does 8.4 10^5-7.7 10^4 equal?

Alex

Answer:

$\huge\boxed{763,000=7.63\cdot10^5}$

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\8.4\cdot10^5-7.7\cdot10^4=8.4\cdot100,000-7.7\cdot10,000\\\\=840,000-77,000=763,000\\\\\bold{METHOD\ 2:}\\\\8.4\cdot10^5-7.7\cdot10^4=8.4\cdot10^{1+4}-7.7\cdot10^4\qquad\text{use}\ a^n\cdot a^m=a^{n+m}\\\\=8.4\cdot10^1\cdot10^4-7.7\cdot10^4=84\cdot10^4-7.7\cdot10^4\\\\\text{use the distributive property}:\qquad a(b+c)=ab+ac\\\\=(84-7.7)\cdot10^4=76.3\cdot10^4=7\underbrace{.63}_{\leftarrow1}\cdot10^{4+1}=7.63\cdot10^5$