Question

q7 and q9 written.w with method step by step

Answer 1

Answer: 50°

Step-by-step explanation:

In ||gm CLUE

ANGLE ULC= ANGLE UEC

ANGLE SKR+ANGLE KSI=180°

ANGLE KSI=60°

IN ∆ESA

X=180°-(60°+70°)

X=50°

Q9 let three no. be 2x,3x,4x

(2x)^3+(3x)^3+(4x)^3=0.334125

8x^3+27x^3+64x^3=0.334125

99x^3=0.334125

x^3=0.003375

x^3=3375/1000000

x=15/100

No.s are 0.3, 0.45 and 0.6

Answer 2

here are both the ans hope it helps you