A slice is made perpendicular to the base of a right rectangular pyramid through the vertex.
What is the area of the resulting two-dimensional cross section?
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Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

What is the slope of the line that contains the points (-2,1) and (0,-3)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0