To find out approximately how many hours its residents are spending playing cards at a senior retirement home, the recreation director conducts a random survey. the table below shows the number of hours per week these randomly selected seniors play cards. hours seniors play cards senior citizen hours played joe 6 mary 2 bert 8 frank 11 elizabeth 10 janet 9 what is the estimated number of hours all seniors at this retirement home play cards, the population mean, based on the sample and rounded to the nearest whole hour? 7 hours 8 hours 9 hours 10 hours

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

answer: 193

explanation:

200-7 = 193

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

s

step-by-step explanation: