For Rashmi good service and cost are also important factors. She would not like to spend more than Rs 24000 for purchasing the AC. Given that the comparative rates of the models are:

AC MODEL

Cost

Special Offers (if any)

Alpha

Rs 22785

Additional Rs 3500 as Annual maintenance charges

Vidyut

Rs 24425

5% discount

Samurai

Rs. 23590

Rs 500 extra for installation

Zenith

Rs.24725

5% discount

Versa

Rs. 29900

No installation charges

Choose the AC model which Rashmi will prefer to purchase in this case?

a. Samurai

b. Vidyut

c. Zenith

d. Versa

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

ou would have 12 of each

47

step-by-step explanation:

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.