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Mathematics 8 Online
OpenStudy (anonymous):

If n+11 even number then which of followings odd number

OpenStudy (anonymous):

what are the answer choices? it sounds like you are asking a multiple choice question

OpenStudy (anonymous):

a) n2+1 (two to the power of two plus one) 3n+3 n+2 and 2n+4

OpenStudy (mertsj):

An even number is one more or one less than an odd number so add 1 and get n + 12 or subtract one and get n+10. Both will be odd

OpenStudy (anonymous):

thanks a lot! can u help me with another question?

OpenStudy (anonymous):

Evaluate followings: (11-22)-(44-66).[72-7.5.2] The dots are multiplication

OpenStudy (anonymous):

ok do parentheticals first so 11-22 then 44-66 then 7*5*2 then 72-70 then -11-(-22)*2 equals -11+22*2 ( because - a negative is positive) so you get 11*2=22

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