18. 1 3/4, 7/5, 1 3/10, 11/20, 1/4
19. 3 1/3, 2 1/5, 9/5, 9/10, 2/15
The MEDIAN is the center point when listed in order.
Mean is the average: sum ÷ #of data
Mode is the number which repeats the most
A car decreasing its speed due to a red light<span>
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A. 10 feet.
Think of it like this:
The wall is upright, it's 90° and it's 8 feet high. The distance from the bottom of the ladder to the bottom of the wall (along the ground, which is perpendicular to the wall) is 6 feet. When Benton places the base of the ladder 6 feet away from the wall and the top is resting at the top of the wall, it looks like a triangle, right?
Using pythagoras (this rule about right-angled triangles and stuff), we can already see that the two sides when simplified are 3:4. Because the 'triangle' is a right-angled triangle, the other side HAS to be 5 to complete the ratio. We just multiply it by 2 to get the correct ratio and that's your answer!