Twins Anna and Tanya, who are both 1.75 m tallboth look at the top of Cleopatra's Needle in Central ParkNew York. Anna's line of sight to the top makes an angle of 40 with the horizontal and Tanya's line of sight makes an angle of ' with the horizontal. If they are standing 7 m apart, how tall is the needle?

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.

2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.

8: 40

2 hours

10: 40

55 min

11: 35