SOLUTION: If –2 < a < 11 and 3 < b < 12, then which of the following is NOT true? (A) 1 < a+b < 23 (B) -14 < a-b < 8 (C) -7 < b-a < 14 (D) 1 < b+a < 23 (E) -24 < ab < 132

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Question 1091421: If –2 < a < 11 and 3 < b < 12, then which of the following is NOT true?
(A) 1 < a+b < 23
(B) -14 < a-b < 8
(C) -7 < b-a < 14
(D) 1 < b+a < 23
(E) -24 < ab < 132
Answer by ikleyn(52780)   (Show Source): You can put this solution on YOUR website!
.
If –2 < a < 11 and 3 < b < 12, then which of the following is NOT true? 

(A) 1 < a+b < 23 

(B) -14 < a-b < 8

(C) -7 < b-a < 14    <<<---===  This one is NOT true.

(D) 1 < b+a < 23

(E) -24 < ab < 132


For your info:
----------------

I edited your post to make it readable.

In the future,  when you use inequality symbols  "<"  and/or  ">",  make the blank space before and after them to make your formulas readable.




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