The temperature at a point (x y) on a metal plate is ts(x y)=100/1+2x^2+y^2 degrees celsius where x and y are measured in centimeters. FInd the rate of change of the temperature at (1,3) in the direction of a=-3i+4j

Which table represents a linear function? i'll give brainliest to first answer ^'^

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance

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?