Find the fourth roots of 256(cos 240° + i sin 240°). (will give brainliest answer/5 stars if correct answer within 30 min. of posting)

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Average acceleration: i have no idea how to do this.

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers