Evaluate f(-5) for the following function.
f(x) = x2 + x – 9

-24

Step-by-step explanation:

-5 times 2 is negative 10. Negative 10 plus negative 5 is negative fifteen. Negative fifteen minus nine is Negative 24, or -24.

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.