Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes. If 7 adult smartphone users are randomly selected, find the probability that at least 5 of them use their smartphones in meetings or classes.

The probability is
(Round to four decimal places as needed.)

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

According to the 2008 u. s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

X+ y = 5 ; x - y =3 solve using linear combination