The inverse is:
Further explanation:
Given function
<u>Step 1: Replacing f(x) with y</u>
<u>Step 2: Replacing x with y and y with x</u>
<u>Step 3: Solving the equation for y</u>
<u>Step 4: Replacing y with f-1(x)</u>
So, the inverse is:
Keywords: Functions, Inverse of function
Learn more about inverse of functions at:
#LearnwithBrainly
Answer:
140=7×2×2×5
Step-by-step explanation:
Answer: The answer is 7-b=-y
Step-by-step explanation: You subtract b from one side to the other, and then do the same with y
2x + x + 10 + x = 110
4x + 10 = 110 (Subtract ten from both sides)
4x = 100 (divide both sides by four)
x = 25
Plug in values to check...
2(25) + 25 + 25 + 10 = 110
50 + 50 + 10 = 110
110 = 110
Mick is 50 years of age.
Sal is 25 years of age.
Eric is 35 years of age.
Answer:
Step-by-step explanation:
- Initial value = $500000
- Depreciation rate = 5.41% each year
- Target value = 1/2*$500000 = $250000
- Number of years = x
Depreciation can be expressed as function:
- d(x) = 500000*((100 - 5.41)/100)^x
- d(x) = 500000*0.9459^x
Having the final value of $250000, we can find x:
- 250000 = 500000*0.9459^x
- 0.5 = 0.9459^x
- log 0.5 = x log 0.9459
- x = log 0.5 / log 0.9459
- x = 12.46 ≈ 13 years rounded
