Answer:
![x = - 1\: or \: x = - 11](https://tex.z-dn.net/?f=x%20%3D%20%20-%201%5C%3A%20or%20%5C%3A%20x%20%3D%20%20-%2011)
Step-by-step explanation:
The given function is
![f(x) = 2 |x + 6| - 4](https://tex.z-dn.net/?f=f%28x%29%20%3D%202%20%7Cx%20%2B%206%7C%20%20-%204)
We want to find the value of x, for which f(x) =6.
Let use equate the function to 6 and solve for x.
![2 |x + 6| - 4 = 6](https://tex.z-dn.net/?f=%202%20%7Cx%20%2B%206%7C%20%20-%204%20%3D%206)
Add 4 to both sides to get:
![2 |x + 6| = 6 + 4 \\ 2 |x + 6| = 10](https://tex.z-dn.net/?f=2%20%7Cx%20%2B%206%7C%20%3D%206%20%2B%204%20%5C%5C%202%20%7Cx%20%2B%206%7C%20%3D%2010)
Divide through by 2 to get:
![|x + 6| = 5](https://tex.z-dn.net/?f=%7Cx%20%2B%206%7C%20%20%3D%205)
Use the absolute value function definition to get:
![x + 6 = 5 \: or \: x + 6= - 5](https://tex.z-dn.net/?f=x%20%2B%206%20%20%3D%205%20%5C%3A%20or%20%5C%3A%20x%20%2B%206%3D%20%20-%205)
Subbtract 6 from both sides to get:
![x = 5 - 6\: or \: x = - 5 - 6](https://tex.z-dn.net/?f=x%20%3D%205%20-%20%206%5C%3A%20or%20%5C%3A%20x%20%3D%20%20-%205%20%20-%206)
![x = - 1 \: or \: x = - 11](https://tex.z-dn.net/?f=x%20%3D%20%20-%201%20%20%5C%3A%20or%20%5C%3A%20x%20%3D%20%20-%2011)
Answer:
The sum of interior angles is found by using the following equation:
∑ of interior angles = (S - 2)180
S = sides.
Note that the sum is given to you, or 1620. Plug in 1620 for the sum:
1620 = (S - 2)180
Next, isolate the variable, s. Note the equal sign, what you do to one side, you do to the other. Divide 180 from both sides:
(1620)/180 = ((S - 2)180)/180
S - 2 = 1620/180
S - 2 = 9
Next, isolate the variable, s. Add 2 to both sides:
S - 2 (+2) = 9 (+2)
S = 9 + 2
S = 11
~
answer: $11.40
explanation: turn the percent into a decimal, multiply it by the starting cost, then subtract the product from the starting cost
>> 40% = 0.40
0.40 x 19 = 7.60
19 - 7.60 = 11.40
Answer: 0.0099
Step-by-step explanation:
Answer:
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hope this helps
Step-by-step explanation: