Question

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Answer 1

Answer:

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Step-by-step explanation:

1.option a ie -3

2.it is 0

see let odd number be 1

and even as 2

then -1 will remain as it is same but due to square in another -1 it will be converted to 1

so -1+1=0

3.option c ie 16/5

4.option d ie 10/18

5.option b ie 4x-5

6.option d ie x+7

7.option c ie 16

let three consecutive numbers be x,,(x+1),,(x+2)

thus x+x+1+x+2=45

solve you get x=14

so the numbers would be 14 15 16

so 16 is greatest

8.option b ie right angle

9.option b ie 2

10.option b ie equal

11.option b ie bc

12.option a ie 1

see bcs sum of all angles in any triangle is 180

and obtuse measures more than 120 to 180

and if there would be two three obtuse angles the sum would go above 180 which is not possible

13.option b ie centroid

14.option a ie 6:5

use a/b/c/d property in this sum

15. option c ie 1000

because 1m=100 cm

but 1cm=10 mm

so 1m=100×10 mm

ie 1m=1000 mm

16.option c ie 100 %

17.option c ie pie chart

it is basically circle of suitable radius and circle is only group of non collinear points in which sectors arc segment can be plotted,, inscribed,, circumscribed

18.option b ie 2

19.option c ie 3

20.i think it must be 0 according to law of integers as 3+(-3) would cancel each other due to unlike terms

I hope my answrs were helpful to you

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