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%.
9514 1404 393
Answer:
(x ≤ -3) ∪ (11 ≤ x)
Step-by-step explanation:
The given equation resolves to two equations:
x -4 ≥ 7 ⇒ x ≥ 11
x -4 ≤ -7 ⇒ x ≤ -3
The solution is (x ≤ -3) ∪ (11 ≤ x).
Answer:
1.5
Step-by-step explanation:
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