When a plane flies against the wind, its 1800-mile trip takes 4 hours. The
return trip with the wind only takes 3 hours. Find the speed of the plane
without wind and the average wind speed. Write your answer in this form:
(plane speed, wind speed) = (#, #) *

Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above

Icould really use some with this question.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap