In usually a large number of respondents are asked to reply, either verbally or in writing, to structured questions using a specific response format or to select a response from a set of choices.

In research questionnaires, usually a large number of respondents are asked to reply,

Step-by-step explanation:

Research Questionnaires are important in getting feedbacks on a particular research work from people either online or offline. The response are then analyzed using statistical approach based on the feedback received.

translate k to n and reflect across the line containing jk.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,