Goodreads is a website where users can rate books they’ve read and share their ratings with friends. Books are rated on a scale from 1 to 5 stars, with larger numbers representing better books. A random selection of books has overall ratings that are bell-shaped with mean 3.9 and standard deviation 0.35. A new, popular book has an average rating of 4.5 on Goodreads. Determine the z-score for this book.

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:

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)

step-by-step explanation:

what does 'mandy have ben 780 bottle caps. ' mean?

the answer is c

step-by-step explanation: i took a test with this question on it