The lines mean that the number is going to become positive. |-178| will become positive meaning it will become= |178|
Answer:
15.5 ft
Step-by-step explanation:
The geometry of the problem can be modeled by a right triangle with hypotenuse 16 ft and one side length of 4 ft. If x represents the height of the ladder on the building, then the Pythagorean theorem tells us ...
x^2 + (4 ft)^2 = (16 ft)^2
x^2 = 240 ft^2 . . . . . . subtract 16 ft^2
x ≈ 15.5 ft . . . . . . . . . . take the square root
The top of the ladder is about 15.5 ft above the ground.
Answer:
x = 97.6
Step-by-step explanation:
cos = adjacent over hypotenuse
* multiply each side by x *
* divide each side by cos ( 55 ) *
we're left with x = 97.63302055
Our last step is to round to the nearest tenth of a foot
We get that x = 97.6
