Given a normal random variable x with mean 20 and variance 9, and a random sample of size n taken from the distribution, what sample size n is necessary in order that p(19.9 ≤ x ≤ 20.1) = 0.95?

Measures of the angle of r, 31 s (x+4) t (3x+9)

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.