Here is the answer if you can't read my writing than just ask. also if you have any questions about how I got something feel free to ask
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%.
Answer:
15 x 30
Step-by-step explanation:
Distribute -5 to each variable in the parenthesis.
-5 x -3 = 15
-5 x -6 = 30
15 x 30
Answer:
please see photo attached for detailed analysis.
Answer: the addition of xy would make it a polynomial because it cannot simplify and the equation would have 3 different set of numbers that could not combine.