So in your question that ask to calculate the length of 2nd avenue between 18th Street and 17th Street, to nearest foot. Base on my calculation, I came up with an answer of C. 671 ft. I hope you are satisfied with my answer and feel free to ask for more clarifications.
Answer:
The difference is 48 meters
Step-by-step explanation:
<u><em>The question is</em></u>
What is the difference of the hikers' altitudes?
Let
x -----> the Melissa's altitude in meters
y ----> Brian's altitude in meters
we have that
---> is positive because is above sea level
---> is negative because is below sea level
Remember that the sea level is the altitude equal to zero
<em>Find the difference</em>
To find out the difference of the hikers' altitudes, subtract Brian's altitude from Melissa's altitude
so

Remember that (-1)(-1)=+1

Answer:
Solve
Step-by-step explanation:
To find the surface area of a triangular prism, use the formula Surface Area = L + 2B, where L is the lateral area and B is the area of the base. Find the lateral area by calculating the perimeter of the base and multiply it by the height of the prism.
It would sure help a lot if I could take a peek at the drawings of the triangles.