Answer: Her answer is wrong because she divided incorrectly. Correct answer: 2
Step-by-step explanation:
PEMDAS
2 to the power of 2=4
3*4=12
12/6=2
Answer:
![5x^{2} + 34x - 22](https://tex.z-dn.net/?f=5x%5E%7B2%7D%20%2B%2034x%20-%2022)
Step-by-step explanation:
-5x ( x + 6 ) = 4 ( x - 3 ) - 10
Distribute
![-5x^{2} - 30x = 4x - 12 - 10](https://tex.z-dn.net/?f=-5x%5E%7B2%7D%20-%2030x%20%3D%204x%20-%2012%20-%2010)
Simplify,
![-5x^{2} -30x = 4x -22](https://tex.z-dn.net/?f=-5x%5E%7B2%7D%20-30x%20%3D%204x%20-22)
Inverse operations;
![-5x^{2} - 30x = 4x - 22\\ +30x +30x\\\\-5x^{2} = 34x - 22\\+5x^{2} +5x^{2}\\\\5x^{2} + 34x - 22](https://tex.z-dn.net/?f=-5x%5E%7B2%7D%20-%2030x%20%3D%204x%20-%2022%5C%5C%20%20%20%20%20%20%20%20%20%20%20%2B30x%20%20%20%20%20%20%20%2B30x%5C%5C%5C%5C-5x%5E%7B2%7D%20%3D%2034x%20-%2022%5C%5C%2B5x%5E%7B2%7D%20%20%20%20%20%20%20%2B5x%5E%7B2%7D%5C%5C%5C%5C5x%5E%7B2%7D%20%2B%2034x%20-%2022)
You could start by noticing
![\dfrac{417.2}{17.2}=\dfrac{\frac{4172}{10}}{\frac{172}{10}}=\dfrac{4172}{172}](https://tex.z-dn.net/?f=%5Cdfrac%7B417.2%7D%7B17.2%7D%3D%5Cdfrac%7B%5Cfrac%7B4172%7D%7B10%7D%7D%7B%5Cfrac%7B172%7D%7B10%7D%7D%3D%5Cdfrac%7B4172%7D%7B172%7D)
so you don't have to worry about the decimal point anymore. Then carry out the division as usual.
172*24 = 4128
so we have
4172 = 4128 + 44 = 172*24 + 44
![\implies\dfrac{417.2}{17.2}=\dfrac{4172}{172}=24+\dfrac{44}{172}](https://tex.z-dn.net/?f=%5Cimplies%5Cdfrac%7B417.2%7D%7B17.2%7D%3D%5Cdfrac%7B4172%7D%7B172%7D%3D24%2B%5Cdfrac%7B44%7D%7B172%7D)
Answer:
the answer is false
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
10b - 5a + 6c
substitute the values
10(8) - 5(6) + 6(5)
80 - 30 + 30
=80