Answer:
The ladder is approximately 12.65 feet high on the building.
Step-by-step explanation:
Since the ladder forms a right triangle with the building, we can apply Pythagora's theorem to calculate the last side, this is done below:
![14^2 = 6^2 + h^2\\h^2 = 14^2 - 6^2\\h^2 = 196 - 36\\h^2 = 160\\h = \sqrt{160}\\h = 12.65](https://tex.z-dn.net/?f=14%5E2%20%3D%206%5E2%20%2B%20h%5E2%5C%5Ch%5E2%20%3D%2014%5E2%20-%206%5E2%5C%5Ch%5E2%20%3D%20196%20-%2036%5C%5Ch%5E2%20%3D%20160%5C%5Ch%20%3D%20%5Csqrt%7B160%7D%5C%5Ch%20%3D%2012.65)
The ladder is approximately 12.65 feet high on the building.
So factor -27
-27=-1 times 3 times 3 times 3
∛(-1 times 3 times 3 times 3)=3 times ∛-1
remember that ∛-1=-1
2 times ∛-1=3 times -1=-3
now we have
5 times (-3)+18
5 times -3=-15
-15+18=3
answer is 3
120 seconds
1 min = 60 seconds
Answer:
x=-2 and x=7
Step-by-step explanation:
x^2-5x=14
x^2-5x-14=0
x= ![\frac{-(-5)+-\sqrt{(-5)x^{2} -4x1x(-14)} }{2x1}](https://tex.z-dn.net/?f=%5Cfrac%7B-%28-5%29%2B-%5Csqrt%7B%28-5%29x%5E%7B2%7D%20-4x1x%28-14%29%7D%20%7D%7B2x1%7D)