Answer:
Work done 
lb-ft
Step-by-step explanation:
The density of the chain in lb/ft is equal to
lb/ft
Total Work done is equal to the summation of work done up to the top of building.
We will use integration for this evaluation.
The mathematical relation is as follows
where "p" is the density
Substituting the given values, we get
Work done lb-ft
Answer:
no variable
Step-by-step explanation:
Answer:
BD = 24
Step-by-step explanation:
EF = 44 - 8x,
BD = 44 - 5x.
Since EF is a midsegment of ∆BCD, therefore, based on the Midsegment Theorem,
Multiply both sides by 2
Collect like terms
Divide both sides by 11
x = 4
BD = 44 - 5x
Plug in the value of x
BD = 44 - 5(4) = 44 - 20
BD = 24
From the description, you can get two equation that looks like this:
L= 2*W+6.7cm
Perimeter= 57.2cm
Using perimeter formula, you can put the first and second equation like this:
perimeter= 2L + 2W
57.2cm= 2(2*W+ 6.7)+2W
57.2cm= 4W+ 13.4+ 2W
57.2- 13.4= 6W
W= 43.8/6= 7.3 cm
L= 2W+ 6.7
L= 2*7.3 + 6.7= 21.3
Answer: <span>A. Length=21.3 cm; width=7.3 cm</span>
