Question

E
Determine cost of living Index No, from following data.
Group
A B C D
Weight
20
10
Expenditure in 2007 1000 200 250 500
Expenditure in 2009 1300 300 300 800
45
800
960​

Answer 1

Answer:

Additionalknowledge

Knowledge about Quadratic equations -

★ Sum of zeros of any quadratic equation is given by ➝ α+β = -b/a

★ Product of zeros of any quadratic equation is given by ➝ αβ = c/a

★ A quadratic equation have 2 roots

★ ax² + bx + c = 0 is the general form of quadratic equation

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Step-by-step explanation:

ITS ASTUTE ANSHU ❤️⚡..