Answer:
Step 1: Write down the decimal divided by 1, like this: decimal 1. Step 2: Multiply both top and bottom by 10 for every number after the decimal point. (For example, if there are two numbers after the decimal point, then use 100, if there are three then use 1000, etc.) Step 3: Simplify (or reduce) the fraction.
Step-by-step explanation:
Answer:
11.31 ft
Step-by-step explanation:
Here in this problem ladder forms a right triangle with the wall of the house and it is acts as hypotenuse, length of one leg of right triangle given to be 4 feet.
Let the ladder reaches x ft height of the house.
Hence, by Pythagoras theorem:
![{12}^{2} = {4}^{2} + {x}^{2} \\ 144 = 16 + {x}^{2} \\ {x}^{2} = 144 - 16 \\ {x}^{2} = 128 \\ x = \sqrt{128} \\ x = 11.3137085 \\ x = 11.31 \: ft](https://tex.z-dn.net/?f=%20%7B12%7D%5E%7B2%7D%20%20%3D%20%20%7B4%7D%5E%7B2%7D%20%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%5C%5C%20%20144%20%3D%2016%20%2B%20%7Bx%7D%5E%7B2%7D%20%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%20144%20-%2016%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%3D%20128%20%5C%5C%20x%20%3D%20%20%5Csqrt%7B128%7D%20%20%5C%5C%20x%20%3D%2011.3137085%20%5C%5C%20x%20%3D%2011.31%20%5C%3A%20ft)
Hence, the ladder reaches 11.31 ft height of the house.
Answer:
I think B and C are the only ones true