Answer: The answer is 314.28 cm² (approx.).
Step-by-step explanation: Given that an engineer is going to install a new water pipe. The diameter of this circular pipe is, d = 20 cm.
We need to find the area 'A' of the circular cross-section of the pipe.
Given, diameter of the circular section is

So, the radius of the circular cross-section will be

Therefore, cross-sectional area of the pipe is

Thus, the answer is 314.28 cm² (approx.).
Answer:
19 orders of tea
57 orders of collee
Step-by-step explanation:
find 1/4 of the 76
76/4=19
multiply by 3
19x3=57
The answer in is 4.4 bc 1/3 of 13.1(which is half of the total distance) is 4.4
ANSWER
D. 13
EXPLANATION
We have

To find

means we want to find an x-value whose image is 3.

We cross multiply,

Expand:

Combine like terms,



Y + 3 = x - 1
- 3 - 3
y = x - 4
The slope-intercept form of the equation of the line is y = x - 4.