There are 15 books on a shelf. 9 of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio of used books to all books?

If every student is independently late with probability 10%, find the probability that in a class of 30 students: a) nobody is late, 4.2% 8.0% 17.4% 33.3% unanswered b) exactly 1 student is late. 3.33% 5.25% 7.75% 14.1%

What is the degree of the polynomial? 4m the the 2nd power - 3m to the 6th power + 5m to the 4th power

The length of a rectangle is 3 meters less than twice the width if the area is 104 square meters find the length

As shown, a section of a roller coaster track (figure 3) follows the form of y = (2/3) x1.5. locate the centroid x? of the track between x=0 m and x=3.5m

Factor completely 2x^2 - 6x - 56.

A guy walks in the store and steals 100 without the owners knowledge. He comes back 5 minutes later and buys 70 dollars worth of goods with the 100 dollar bill. The owner gives him back 30 in change

The probability of a randomly selected car crashing during a year in a certain country is 0.04780.0478. if a family has three three? cars, find the probability that at least one of them has a car crash during a year.

1/2n-17/12=2/3n-13/6

Every day two sisters eat the same number of gluten-free rice cakes. Susanna eats 4/5 of a rice cake. Melanie eats 2/3 of a rice cake. How many rice cakes do they eat in one day?

Factor 12xsqared - 36x + 27 Completely