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maddie4985
05.04.2021 •
Mathematics
A formula that the police use for finding the speed, S, in miles per hour that a car was going from the length, L, in feet of its skid marks is S= V52. The Guinness Book of Records reports that in 1960, a Jaguar in England had the longest skid mark ever recorded: 950 ft. a. What was the Jaguar's approximate speed? b. About how far will a car travel if it skids from 50 mph to a stop?
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Ответ:
The correct option is;
They form concentric circles
Step-by-step explanation:
Given that the coordinates of the vertices of the trapezoid are;
E = (-4, 8)
F = (-7, 5)
G = (-4, 3)
H = (-2, 5)
We note that the distances from the origin, O, to the vertices are;
OE = √((-4)² + 8²) = √(80) = 4·√5
OF = √((-7)² + 5²) = √(74)
OG = √((-4)² + 3²) = √(25) = 5
OH = = √((-2)² + 5²) = √(29)
When rotated 720° about the origin, each point behaves as the radius of a circle with center at the origin such that they form concentric circles with OE being the largest circle and OG the smallest circle at the center.