Answer:
<em>18 hours after 10 AM</em>
Step-by-step explanation:
- We are looking for the time the helicopter and the plane will be the same distance from Burbank after 10 AM.
- We are given the two equations for the distance that the helicopter and the plane are away, in miles.
- It also says that R is the variable for time.
- Using this information, we need to solve for the time with broth equations, so we would set both up to be equal to each other, since they will be the same distance away from each other.
- It would look like this: -150r + 260 = -270r + 440.
- Add 150r to both sides.
- 260 = -10r + 440.
- Add -10r to both sides.
- Now we have 10r + 260 = 440
- Subtract 260 from both sides.
- 10r = 180
- Divide each side by 10 to isolate the R.
- R = 18.
- It would be 18 hours after 10 AM.
If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
Step-by-step explanation:
I will do the first one as an example.
To find the inverse of y = f(x), simply switch x and y, then solve for y.
y = 3 + 2 ln x
x = 3 + 2 ln y
x − 3 = 2 ln y
(x − 3) / 2 = ln y
y = e^((x − 3) / 2)
So the inverse function is:
f⁻¹(x) = e^((x − 3) / 2)
The original function told us the amount of water as a function of time.
The inverse function tells us the time as a function of the amount of water.
Answer:
3.14*9^2*12/3=
Step-by-step explanation:
V=π*r^2*h/3
3
Answer:
x=(-2)
Step-by-step explanation:
subtract 4x from 2x
-6+7=1 4-2=2 subtract 1 from 2
-2x=1 x=-2
Step-by-step explanation:
(4,20) means that the snail took four hours to cover a distance of 20 feet.
