The answer for the exercise shown above is the second option, the option B, which is: B. In step 3, the addition property of equality was applied incorrectly.
The explanation is:
To solve this problem you must apply the proccedure shown below:. You have the followinwg equation:
<span>
4(m-3)+5(m+2)=m+9
Let's review the steps:
4m-12+5m+10=m+9 (step 1)
9m-2=m+9 (step 2)
8m =7 (step 3) (There is a mistake, because: 9m-m=9+2</span>⇒8m=11)
<span> m=11/8 This should be the step 4</span>
Answer: ![y=\sqrt[]{\frac{x+4}{2} }](https://tex.z-dn.net/?f=y%3D%5Csqrt%5B%5D%7B%5Cfrac%7Bx%2B4%7D%7B2%7D%20%7D)
Step-by-step explanation:
![y=2x^2-4\\x=2y^2-4\\x+4=2y^2\\\frac{x+4}{2}=y^2\\ y=\sqrt[]{\frac{x+4}{2} }](https://tex.z-dn.net/?f=y%3D2x%5E2-4%5C%5Cx%3D2y%5E2-4%5C%5Cx%2B4%3D2y%5E2%5C%5C%5Cfrac%7Bx%2B4%7D%7B2%7D%3Dy%5E2%5C%5C%20y%3D%5Csqrt%5B%5D%7B%5Cfrac%7Bx%2B4%7D%7B2%7D%20%7D)
4 times (*) the sum of (+) 14 and 26
4(14 + 16)
4*30
120
you would round it to 1.7 so aubra would be correct. This is because if the last digit in the number you are rounding id over 4 your round it up. For example 55 would round to 60.
4.34 would round to 4.30