Question

plz help, If u help i will go to your profile and like all your answers and also mark u as brainlist.promise​

Answer 1

Answer:

Given in image

I hope it helps.

Answer 2

Answer:

1.(a) 8^3 = 343

(b) 10% of Rs.50 = 10/100 × 50 = 50/10 = 5.0Rs.

2.(a) 20:18 in lowest form = 10:9

(b) 2^3 = 8 and 3^2 = 9 , therefore 3^2 is greater than 2^3.

3.(a) (a-b)^2 = a^2 - 2ab + b^2

4.(a) perimeter of a triangle = sum of all sides

= 4cm + 3 cm + 5 cm = 12 cm

(b) Supplement of 135° = 180° - 135° = 45°

5.(b) SP = 100 - loss / 100 × CP

SP = 100 - 48 /100 × 630

SP = 327.6 Rs.

8.(a) (2x+3y)(2x-3y) = (a+b)(a-b) = (a)^2 - (b)^2

a = 2x and b = 3y

= (2x)^2 - (3y)^2

= 4x^2 - 9y^2

10. 0.81 in fraction = 81/100.