Find the sum. (2x2 + 5x - 7) + ( 3 - 4x2 + 6x)​

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

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?