1. The President is hoisting the flag, but the line has gotten stuck. A Hardy wants to fix it. He used a 15m ladder and placed it 9m away
base of flag pole. Find the height of flag.

the height of the flag = 12cm

Step-by-step explanation:

inclide ladder length = 15m (hypotenuse)

distance between ladder foot and flag foot= 9m (base)

according to Pythagoras theorem,

(h)^2 = (p)^2 + (b)^2

(15)^2 = (p)^2 + (9)^2

(p)^2 = (15)^2 - (9)^2

(p)^2 = 225-81

p = √144

p= 12 cm

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,