There are 397 students in the cafeteria at lunch. each table seats 8 students. approximately how many tables are needed for all of the students? use compatible numbers.

1: 4 if the wew 35 surfboards at the beach how many were short boards?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me