Math, asked by hp1236706, 1 day ago

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Answered by tennetiraj86
4

Step-by-step explanation:

Solution :-

1)

The two numbers whose sum is 0 is called additive inverse of each other.

Ex :-

7+(-7) = 0

7 is the additive inverse of -7

-7 is the additive inverse of 7

2)

Let the length of the rectangle be b units

The breadth of the rectangle

=> 3 units less than its length

=> b-3 units

Perimeter of a rectangle = 2(l+b) units

=> P = 2(b+b-3) units

=> P = 2(2b-3)

=> P = 4b-6 units

3)

The measure of each exterior angle of a square is 90°

4)

Given that

2 1/5 +(-3 1/2)

=> (11/5)+(-7/2)

=> (11/5)-(7/2)

LCM of 5 and 2 is 10

=> [ (11×2)-(7×5)]/10

=> (22-35)/10

=> -13/10

=> - 1 3/10

The value is -13/10 or -1 3/10

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