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beks73 [17]
2 years ago
7

A 50-ft chain with mass density 5 lb/ft is initially coiled on the ground. How much work is performed in lifting the chain so th

at it is fully extended (and one end touches the ground)?
Mathematics
1 answer:
tatyana61 [14]2 years ago
6 0
Density is mass/ volume so the answer is 10
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A rectangle has a length at least four more than five times the width. if the perimeter is at least 44 units. find the least pos
Eva8 [605]
The answer is 3 and you get that by using the formula for the area of rectangle, p=2L+2W
44=2(4+5w) + 2w
44=8+10w + 2w
44=8+12w
44-8=8+12w-8
36=12w
36/12=12w/12
3=w
If you plug 3 back into the original formula then you see that it is equal to the perimeter of 44
P=2(4+5w) + 2w
P=2(4+5•3) + 2(3)
P=2(19) +6
P=38+6
P=44
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What is the average rate of change between f (1) and f (5) in the function f (x) = x2 - x - 6 ?
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