Asound wave has a frequency of 425 hz. what is the period of this wave? 0.00235 seconds 0.807 seconds 425 seconds 850 seconds

Answer : Time period of the wave is 0.002355 per second.

Explanation :

It is given that,

Frequency of the sound wave, f = 425 Hz

Frequency of a wave is defined as the number of vibrations per second.

We know that the relation between the frequency of a wave and the time period is :

The correct option is (A).

Hence, this is the required solution.

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .