If a is an odd integer and b is an even integer, which of the following makes an odd integer? A.) 3b
B.) a+3
C.) 2(a+b)
D.) a+2b
Explain your answer

9514 1404 393

  D.) a+2b

Step-by-step explanation:

The integers 'a' and 'b' can be any, so you can choose a couple and evaluate these expressions to see what you get. For example, we can let a=1 and b=0. For these values, the offered expressions evaluate to ...

  A) 3(0) = 0 . . . even

  B) 1 +3 = 4 . . . even

  C) 2(1+0) = 2 . . . even

  D) 1 +2(0) = 1 . . . odd

Additional comment

These rules apply to even/odd:

Then A is (odd)(even) = even; B is (odd)+(odd) = even; C is (even)(whatever) = even; D = (odd)+(even) = odd.

answer: the area of the parallelogram below is 42 square meters.

- officialprodixy ☕

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