Use Pythagoras theorem
11^2 = h^2 + 3^2 where h is the height of ladder agaianst the wall
h^2 = 11^2 - 3^2
=(11+3)(11-3) = 14 * 8 = 112
h = sqrt 112 = 10.58 ft
Answer:
the opposite of a positive number is always negative
Can you show me the spinner on the left?
Powerss of three are 3&+^x
lets try trial and error
3^1=3
3^2=9
3^3=27
3^4=81
3^5=243
3^6=729
3^7=2187
3^7 is more than 100 so the answer would be the powers up to 6
