1.) -21
2.) 5
3.) -20
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A square because it has parrel sides and has equal sides and also has right angles
Based on the statements provided, Barry will a have a Labrador, a Collie and a Staffie at home if he has at least one dog breed.
<h3>What is logical reasoning ?</h3>
Logical reasoning in mathematics is the process of using rational and critical thinking abilities to arrive at a conclusion about a problem.
Since Barry have at least one dog breed, the possible breeds of dogs that Barry have can be determined as follows:
Statement 1: If I have a Labrador but not a Staffie, I also have a Collie
Statement 2: I either have both a Collie and a Staffie or neither.
Statement 3: If I have a Collie, then I also have a Labrador.
- From Statement 1, If Barry will have a Labrador and Collie if he doesn't have a Staffie.
- From Statement 2, Barry will have both a Collie and a Staffie or he wont have either.
- From Statement 3, Barry must have a Labrador if I he has a Collie.
Therefore, Barry will have a Labrador, a Collie and a Staffie at home if he has at least one dog breed.
Learn more about logical reasoning at: brainly.com/question/25175983
Answer: A) -131
B) 1
C) 442
D) -42
-213
Step-by-step explanation:
Properties we use to solve problems related ti INTEGERS:
For sum :
a +(-b)=a-b
-a-b=-(a+b)
For product :
(+)(+)= (+)
(+)(-)=(-)
(-)(-)=(+)
A) -11+(-120) = -11 -120 [∵ a +(-b)=a-b]
= -(11+120) [∵ -a -b=-(a+b)]
= -131
B) 18+(-17) = 18-17 =1 [∵ a +(-b)=a-b]
C)+13(+34) = +442 [(+)(+)= +]
D) -15+(-27)
= -15-27 [∵ a +(-b)=a-b]
= -(15+27) [∵ -a -b=-(a+b)]
= -42
E) +56+(+27)
= 56+27=83
F)-32+(-181) = -32-181 [∵ a +(-b)=a-b]
= -(213) [∵ -a -b=-(a+b)]
= -213
