Answer:
-7
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
¹31.5
Step-by-step explanation:
Area of trapezium= 1/2 ×h×(b1+b2)
A=1/2×3×(12+21)
A=31.5
In finding this value you average lower and upper bound
(0.6+0.82)/2 = 0.71
=0.71 estimated
margin of error = distance from estimate point lower/ upper bound
This interval will be twice margin error
(0.82-0.6)/2 = 0.11
How far is 0.82 from 0.71 ??
=0.11=11%
