Answer:
A. y = cos x
Step-by-step explanation:
The function that we see graphed has the point (0,1), this means whichever trig function f(x) it represents f(0) = 1.
Now, only the cosine function has the property that cos(0) = 1, thus choice A is the correct answer.
Step-by-step explanation:
Answer:
245
Step-by-step explanation:
1m-100cm
2.45m=2.45x100
<h2>
Steps:</h2>
Here are the steps to convert an equation to its inverse:
- Change f(x) to y
- Switch the positions of x and y
- Solve for y
- Change y to f^-1(x)
Firstly, do the first two steps:

Next, let's solve for y. Subtract 3 on both sides:

Next, divide both sides by 4:

<h2>Answer:</h2>
Finally, change y to f^-1(x) and your final answer will be:
, or <u>the second option.</u>
The charge should be $6. I believe I set this up correctly; let me know if there are any errors. Hope this is helpful & accurate.