Answer:
0.9%
Step-by-step explanation:
We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.
We will use percentage error formula to solve our given problem.





Therefore, Rich's percent error in calculation is 0.9%.
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Answer:
1). x = 81
2). x = 84
Step-by-step explanation:
1). By applying geometric mean theorem in the given triangle,

56x = (18√14)²
56x = 4536
x = 
x = 81
2). By applying geometric mean theorem,

16x = (8√21)²
16x = 1344
x = 
x = 84
Answer:
The answer to your question is : 33.3 (Rounded).
Step-by-step explanation:
I got this answer by dividing 19.6 by 20, which gave me 0.98.
Then, I multiplied 0.98 by 34, which gave me 33.32.
After rounding, 33.3 is your answer.
Hope this helped!!