If f(x) = x2, find the inverse of f.

The inverse is ±sqrt(x)

Step-by-step explanation:

y = x^2

Exchange x and y

x = y^2

Solve for y

Take the square root of each side

±sqrt(x) = sqrt(y^2)

±sqrt(x) = y

The inverse is ±sqrt(x)

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°