As a grade? Yes, but not by very much. By average of 5%
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Well, honey, a minus is technically higher on the grading scale than a B plus. So, yeah, it's better if you're looking to boost that GPA. But hey, at the end of the day, a passing grade is a passing grade, am I right? Just keep doing your best and don't stress too much about the little details.
2b
Let y= ab+(- a)(b) +(-a)(-b) factor out -a y= ab+(-a){b+(-b)} y=ab+(-a)(0) y =ab -------------------(1) now factor out b y= b{a+(-a)}+(-a)(-b) y= b(0) +(-a)(-b) y= (-a)(-b)-----------------(2) equate (1) and (2) (-a)(-b)=ab minus x minus = positive
(a+b)/2 - 10 a+b divided by 2 and then minus 10
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