A periodic wave (i. e., a wave pattern that repeats itself) is produced in a stretched string by a mechanical oscillator operating at a frequency of 465 Hz. This means that one point on the stretched string is pushed up and down at a regular frequency. The so-called "oscillator" is the source of the repeating waves. The linear density of the string is 0.00140 kg/m and the wavelength of the periodic wave is 0.0700 m.

it should be -8.6 cm hope this out

i think the answer would be b

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 .

god i hope this !