Answer:
u = 3.8 cm
Step-by-step explanation:
Since these triangles are similar, we can use a proportion to solve:

Cross multiply:
8u = 30
Divide both sides by 8:
3.75 cm
Round to nearest tenth:
3.8 cm
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- Heather
K = (x + 1) (x + 2) /3x + 7
Answer:
the cercomference is 220
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
t = 2 to 7
Required
Find the average speed over these intervals
The function is not given; so, I'll represent the function as s(t)
When 

When 


This gives:

