Estimate the square root of 82. Round to the nearest hundredth. Show your work!
2 answers:
Answer:
9.0.
Step-by-step explanation:
Answer:
9.0554
Step-by-step explanation:
10
>
√82
>
9
, √
82
≈
9.0554
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Answer:
![-x^2+24x-70](https://tex.z-dn.net/?f=-x%5E2%2B24x-70)
Step-by-step explanation:
![(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5 - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70](https://tex.z-dn.net/?f=%28x-1%29%5E2%2B%282-x%29%5E2-3%28x-5%29%2A%28x-5%29%5C%5C%3D%3E%20%28x%20-%201%29%5E2%20%2B%20%282%20-%20x%29%5E2%20-%203%28x%20-%205%29%5E2%5C%5C%3D%3E%20x%5E2%20-%202x%20%2B%201%20%2B%204%20-%204x%20%2B%20x%5E2%20-%203%28x%20-%205%29%5E2%5C%5C%3D%3E%20x%5E2%20-%202x%20%2B%205%20-%204x%20%2B%20x%5E2%20-%203%28x%20-%205%29%5E2%5C%5C%3D%3E%20x%5E2%20-%206x%20%2B%205%20%2B%20x%5E2%20-%203%28x%20-%205%29%5E2%5C%5C%3D%3E%202x%5E2%20-%206x%2B5%20-%203%28x%20-%205%29%5E2%5C%5C%3D%3E%202x%5E2%20-%206x%2B5%20-%203%28x%5E2%20-%2010x%20%2B%2025%29%5C%5C%3D%3E%202x%5E2%20-%206x%2B5%20%20-%203x%5E2%2B30x-75%5C%5C%3D%3E%20-x%5E2%20-%206x%20%2B%205%20%2B%2030x%20-%2075%5C%5C%3D%3E%20-x%5E2%20%2B%2024x%20%2B%205-75%5C%5C%3D%3E%20-x%5E2%2B24x-70)
Formula used =
![(a-b)^2 = a^2+ 2ab + b^2](https://tex.z-dn.net/?f=%28a-b%29%5E2%20%3D%20a%5E2%2B%202ab%20%2B%20b%5E2)
Answer: its A
Step-by-step explanation:
D)A rectangle is always also a parallelogram.