Two planes left the same airport at the same time traveling in opposite directions. the first plane traveled at an average rate of 30 mph slower than the second plane. after 3 hours, the planes were 3150 miles apart. enter an equation that can be used to determine when the planes are 3150 miles apart, where x represents the average rate of the second plane. enter the average rate of change of the slower plane.

What is the sum of these mixed numbers 2 1/8 + 4 3/8

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.