Question

give the answer to the question.... ​

Answer 1

Answer:

1. 90 cm = 0.9m

 Area = a2 = 0.9*0.9 = 0.81 sq.m

2. 1m 50cm = 1.5m

   Area = 1.5*1.5 = 2.25 sq.m

Answer 2

Answer:

Given if αβ are zeroes of quadratic polynomial

f(x)=x

2

−5x+k (1)

& α−β=1

& α−β=5 & αβ = k

we know (α+β)

2

−(α−β)

2

=4αβ

25−1=4αβ

αβ=

4

24

=6

∴ value of k = αβ=6.

Step-by-step explanation:

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