the ordered pairs (1,4), (3,12) and(5,20) represents the distance y the Dario walks after X seconds plot ordered pairs in the co
ordination plane and draw a line through the points
2 answers:
Answer: The answer is given in the attached figure below.
Step-by-step explanation: Given that the ordered pairs (1,4), (3,12) and(5,20) represents the distance y the Dario walks after x seconds.
We are to plot the given ordered pairs in the co-ordinate plane and to draw a line through them.
As shown in the attached figure below, the distance y the Dario walks after x seconds is plotted on the co-ordinate plane.
The time in seconds is plotted across X axis and the corresponding distance walked by Dario is plotted across Y axis.
The point (1, 4) is represented by A, (3, 12) is represented by B and (5, 20) is represented by C.
Finally, we join the points A, B and C to make a straight line l.
Thus, the attached figure below is the required answer.
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Answer:
4.63 cubic yard.
Step-by-step explanation:
Given,
The length of sidewalk, l = 100 feet,
Width, w = 5 feet,
Depth, h = 3 inches = 0.25 feet,
Thus, the volume of the concrete needed for making the sidewalk,
= 125 cubic feet,
∵ 1 cubic yard = 27 cubic feet,
⇒ 1 cubic feet = cubic yard,
Thus, the quantity of concrete needed = ≈ 4.63 cubic yard.