Round 617,889 to the nearest hundred thousand

Which expression is not a polynomial?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer