Two straight sections of freeway cross at a right angle. at the point of crossing, the east-west highway is at elevation 150 ft and has a constant +5.0% grade (upgrade in the east direction), and the north-south highway is at elevation 125 ft and has a constant -3.0% grade (downgrade in the north direction). design a 90-degree ramp that connects the northbound direction of travel to the eastbound direction of travel. design the ramp for the highest design speed (to the nearest 5 mi/h) with the constraint that the minimum allowable value of d is 8.0. assume that the pc of the horizontal curve is at station 15 + 00, and that the vertical curve pvis are at the pc and pt. give the stationing and elevations of the pvis, pvcs and pvts. you may find that drawing out the horizontal and vertical curves aids in your solution. make sure to define the pvi elevations.

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step-by-step explanation:

what’s the question?

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.

this would be 35. 35 + 5 = 40. you take the known constant and subtract by the answer of the equation and you get y.