Answer:
The base of the ladder has a length of 8 ft.
Step-by-step explanation:
We have to draw a triangle, as the figure attached.
The hypothenuse of the triangle is the length of the ladder (17 ft).
The height on the wall that the ladder reach is the adjacent (15 ft).
The base of the ladder is our unknown quantity X.
We will use the Pythagorean theorem to express the relation between these numbers:
![c^2=a^2+b^2\\\\17^2=15^2+x^2\\\\x^2=17^2-15^2=289-225=64\\\\x=\sqrt{64}=8](https://tex.z-dn.net/?f=c%5E2%3Da%5E2%2Bb%5E2%5C%5C%5C%5C17%5E2%3D15%5E2%2Bx%5E2%5C%5C%5C%5Cx%5E2%3D17%5E2-15%5E2%3D289-225%3D64%5C%5C%5C%5Cx%3D%5Csqrt%7B64%7D%3D8)
The base of the ladder has a length of 8 ft.
The answer is going to be 250
The area of a square can be calculated by using this formula:
![A=s^2](https://tex.z-dn.net/?f=A%3Ds%5E2)
Where "s" is the length of a side of the square.
In this case, you can identify that:
![s=9.7ft](https://tex.z-dn.net/?f=s%3D9.7ft)
Then, in order to estimate the area of the square, you can follow these steps:
1. Round the length "s" to the nearest whole number. Since the first digit after the Decimal point is 7 and:
![7>5](https://tex.z-dn.net/?f=7%3E5)
You must round up:
![s\approx10ft](https://tex.z-dn.net/?f=s%5Capprox10ft)
2. Knowing that:
![10^2=10\cdot10](https://tex.z-dn.net/?f=10%5E2%3D10%5Ccdot10)
You can determine that:
![A\approx100ft^2](https://tex.z-dn.net/?f=A%5Capprox100ft%5E2)
Hence, the answer is: Option C.
Answer: 70
Step-by-step explanation:
Exact form: 10/9 decimal form: 1.111 mixed number form: 1 1/9