Write the quadratic equation in general form then choose the value of “b”.
(2x-1)(x+5)=0

a.)9
b.)10
c.)11

Write the quadratic equation in general form then choose the value of “b”.  

(2x-1)(x+5)=0

A.)9

B.)10

C.)11

Step-by-step explanation:

Expand

Which is

So the value of B is 9

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

the answer is 99.