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What is the product of 3x(x2 + 4)? A=x2 + 3x + 4 B=3x3 + 4 C=3x3 + 12x D=3x2 + 12x

asked Jul 9, 2017

Mathematics
high-school

2 answers

1 vote

6.6k views

Which particle has a mass of approximately 1 atomic mass unit? A) an alpha particle B) a beta particle C) an electron D) a neutron

asked Aug 1, 2016

Chemistry
high-school

1 answer

4 votes

128k views

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