If a population is , a sample of the population could be . A. Ninth-graders at Peak School; All students at Peak School

B. The entire school faculty; math teachers

C. Registered voters; all citizens

D. People who purchased shoes; all customers

c

Step-by-step explanation:

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,

so, converting firstly the mixed fractions to improper fractions and then "adding".