Question

If you choose the scale 5mm = 1km. What would be the length of a road (on the map) that is 700m long ?

Answer 1

Answer:

If 5mm = 1KM

xmm = 700mM

Answer 2

Answer:

enda mole

Step-by-step explanation:

Given :-

If α and β are the roots of the equation x² + 5x + 5 = 0

To Find :-

The Equation whose roots are (α + 1) and (β + 1).

Solution :-

On comparing the given equation with ax² + bx + c.

We get

a = 1

b = 5

c = 5

We know that

Sum of zeroes = α + β = -b/a

Sum = -(5)/1

Sum = -5

Product of zeroes = αβ = c/a

Product = 5/1

Product = 5

Now,

New sum of zeroes = α + 1 + β + 1

Sum = α + 1 + β + 1

Sum = (α + β) + (1 + 1)

Sum = (-5) + 2

Sum = -3

New product of zeroes = (α + 1)(β + 1)

Product = (α + 1)(β + 1)

Product = (αβ) + (α + β) + 1

Product = 5 + (-5) + 1

Product = 1

Now,

Quadratic polynomial = x² - (α + β)x + αβ

Quadratic polynomial = x² - (-3)x + 1

Quadratic polynomial = x² + 3x + 1