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OpenStudy (anonymous):
Find the product: (5)(-16) A. -80 B. -70 C. 70 D. 80 I'm thinking is C. Am no so sure though
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OpenStudy (anonymous):
-80
OpenStudy (anonymous):
-80
OpenStudy (anonymous):
use a calculator.......
OpenStudy (anonymous):
I can't used one in school... :/
OpenStudy (anonymous):
thats stupid :/ what grade are you in?
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OpenStudy (unklerhaukus):
\[(5)(-16)=5\times(-2\times8)=(5\times-2)\times8=-10\times8=-80\]
OpenStudy (anonymous):
If both numbers have the same signs they will always be positive. If both numbers have different signs they will be negative.
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