Question

26. The sum of two monomials is always a ________.


27. The sum of x − y ,3 x² − 4y and 3x − y + 6 is __________.


28. Subtracting – x²+ 10x − 5 from 6x − 15 , we get ______________.


29. When two expressions are added ,we add their like ___________ terms and leave the _________ terms as they are.


30. The value of y²-5 for y= -5 is ___________.


31. x² −(- x)²is equal to _________.


32. The value of [x+y/6] at x=5 and y=7 is __________.


33. In the algebraic expression (4a=5b-c-5a+6ab),the like terms are 4a and _____________.


34. When -2/3 x²is subtracted from 0 ,we get ___________.


35. In ∆ PQR, the included angle between QR and RP is ______________.


36. If in an isosceles triangle, each of the base angles is 40°,then the triangle is ___________.

37. If one angle of a triangle is equal to the sum of other two, then the measure of that angle is __________.


38. State the Pythagoras property.


39. Which conditions are necessary to be satisfied by a pair of angles for them to be adjacent ?


40.The angles are equal and complement of each other,Each angle measures ______________.​

Answer 1

Step-by-step explanation:

40) each angle measures 45°

39) they must have a common side

38) square of hypotenuse is equal to the sum of squares of other two sides

37) 90°

36)

35)

34) 2/3 x²

33)

32) 2

31) 2x²

30) 20

Answer 2

Answer:

26) a monomial

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+6

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-5

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=20

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/6

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R36)the third angle is 100° It is an obtuse Isosceles triangle.

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R36)the third angle is 100° It is an obtuse Isosceles triangle.37)90°

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R36)the third angle is 100° It is an obtuse Isosceles triangle.37)90°38) In a right angled triangle , The square of the hypotenuse is equal to the sum of the squares of the other two sides.

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R36)the third angle is 100° It is an obtuse Isosceles triangle.37)90°38) In a right angled triangle , The square of the hypotenuse is equal to the sum of the squares of the other two sides.39)if two angles are having same common vertex on the same line

26) a monomial27)x-y+3x²-4y+3x-y+6=3x²+4x-6y+628)6x-16-(-x²-10x+5)=x²+16x-529) coefficient terms ,unlike terms30)(-5)²-5=25-5=2031)x²-(-x²)=x²+x²=2x²32)5+7/6=(30+7)/6=37/633)-5a34)0-(-2/3x²)==2/3x²35)angle QRP or angle PRQ or angle R36)the third angle is 100° It is an obtuse Isosceles triangle.37)90°38) In a right angled triangle , The square of the hypotenuse is equal to the sum of the squares of the other two sides.39)if two angles are having same common vertex on the same line40)45°