Answer: 17 miles per hour.
Step-by-step explanation:
1. To solve this problem you must apply the following formula:
=Δx/Δt
Where Δx is the position variation and Δt is the time variation.
2. Then, based on the graph shown attached, you have:
3. Therefore, you have that the result is:
Answer:
length of CD = 18 units.
Step-by-step explanation:
In ΔABC and ΔCED,
AB║DE and AD is a transversal line,
m∠ABC = m∠CED [Alternate interior angles]
m∠ACB = m∠DCE [Vertically opposite angles]
ΔABC ~ ΔCED [By AA property of similarity]
Therefore, by the property of similar triangles, corresponding sides will be proportional.
CD = 6
Since, AD = AC + CD
AD = 12 + 6
= 18 units
Therefore, length of CD = 18 units.