A 7 feet stop sign creates a shadow that is 2 feet long. At the same time a utility pole creates a shadow that is 2 feet long. H
1 answer:
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Answer:
<h2>B, D, E</h2>Step-by-step explanation:
Used:
Associative property
and
Answer:
The area of the room and its uncertainty in square meters is:
15.642±0.040
Step-by-step explanation:
We know the area of a rectangular room is the multiplication of the length and width:
Now we need to know the uncertainty, the uncertainty of a multiplication is:
(1)
: Area uncertainty
: Length uncertainty
: Width uncertainty
A: Area of the room
L: Length
W: Width
Clearing the uncertainty of the area:
(2)
The area of the room and its uncertainty in square meters is:
15.642±0.040