In recent years, a certain area of the world has experienced greater shifts in weather patterns. For example, there are many nights during which the temperature gets below freezing, but many days that are very warm. These shifts have made it difficult to grow and harvest crops.

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no