Justin rode the first 30 miles of a bicycle trip at a constant rate. For the next 21 miles, he reduced his speed by 3 mph (stayed constant for the 21 miles). The total time for the trip was 6.5 hours. Find justin’s rate for each part of the trip.

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

What is not true about kl and mn? what is mn? (show )

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)