Find the inner product for 5,2 multiply -3,7 and state whether the vectors are perpendicular.

-1 ; no

Step-by-step explanation:

5 x -3 + 2 x 7 = -1

And since -1 is not zero the vector will not be perpendicular

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.