Final answer:
The statement about crowned roads being higher in the center than the edges is true; it aids in drainage. A car moving at constant speed in one direction has a steady velocity. Vectors can indeed create a right angle triangle with their components, forming the hypotenuse of the triangle.
Step-by-step explanation:
The statement "A crowned road is higher in the center of the road than on the edges" is True. Crowned roads are designed this way for drainage purposes, so that water will run off to the sides of the road, rather than pooling in the middle. This design helps to maintain road integrity and prevent water-related damage. For example, when it rains, the water will flow down from the crown in the center towards the edges of the road, where drainage systems can carry it away, reducing the risk of hydroplaning for cars.
Similarly, if a car is moving on a straight road at a constant speed in a single direction, it is maintaining a steady velocity, which means there is no change in speed and direction. Regarding the structure mentioned by Beth, it's common in certain designs, such as in bridges or buildings, for the distance between support columns to vary, often for reasons related to structural integrity or esthetics.
Lastly, the statement that a vector can form the shape of a right angle triangle with its x and y components is True. This is because any vector in a two-dimensional plane can be broken down into two perpendicular components, one along the x-axis and one along the y-axis. These components can be thought of as the sides of a right angle triangle, with the original vector being the hypotenuse.