Answer:
We know that the rectangular plate has measures of:
length = 7.6 ± 0.05 cm
width = 3.1 ± 0.05 cm
(the error is 0.05cm because we know that both measures are correct to one decimal place)
First, the upper bound of the length is equal to the measure of the length plus the error, this is:
L = 7.6 cm + 0.05 cm = 7.65 cm
The upper bound of the area is the area calculated when we use the upper bound of the length and the upper bound of the widht.
Remember that the area for a rectangle of length L and width W, is:
A = W*L
Then the upper bound of the area is:
A = (7.6cm + 0.05cm)*(3.1cm + 0.05cm) = 10.8 cm^2
The other person is literally wrong. The answer is D. Supplementary because two angles that add up to 180 are supplementary angles.
Answer:
The fraction of the original strip left is 
.
Step-by-step explanation:
We have that,
A strip of paper is cut in 
. So, the strip of paper left is .
Now, again the remaining part is cut in half. The part left will be 
i.e. 
.
Finally, the remaining part is again cut in half.
We get, the final part of the paper remaining is 
i.e. .
So, the fraction of the original strip left is .
