3 years ago

CUse the drop-down menus to complete the statements.

Engineering

2 answers:

Illusion [34]3 years ago

7 0

Answer:

The expansion of the Roman Empire helped grow trade.

Caesar Augustus stabilized prices and promoted trade by establishing a common currency.

Roads helped the economy by connecting inland areas to water routes.

Improvements in agriculture led to better trade and made Rome less dependent on wheat from Egypt.

Iteru [2.4K]3 years ago

4 0

Elmo World lalalalalalalalaalalalalalalalalalalalalalalalalalalaal it’s Elmo World it’s Elmo World
Explanation

See eLmO WoRlD

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Answer:

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Explanation:

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3 years ago

If it took 2 hours to clean 4 houses how many houses could be cleaned in 3 hours

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Answer:

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Explanation:

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3 years ago

30 points and brainiest if correct please help A, B, C, D

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2 years ago

Substances A and B have retention times of 16.63 and 17.63 min, respectively, on a 30 cm column. An unretained species passes th

Svet_ta [14]

Answer:

The time required to elute the two species is 53.3727 min

Explanation:

Given data:

tA = retention time of A=16.63 min

tB=retention time of B=17.63 min

WA=peak of A=1.11 min

WB=peak of B=1.21 min

The mathematical expression for the resolution is:

$Re_{s} =\frac{2(t_{B}-t_{A})}{W_{A}+W_{B} } =\frac{2*(17.63-16.63)}{1.11+1.21} =0.8621$

The mathematical expression for the time to elute the two species is:

$\frac{t_{2}}{t_{1}} =(\frac{Re_{B} }{Re_{s} } )^{2}$

Here

ReB = 1.5

$t_{2} =t_{1} *(\frac{Re_{B} }{Re_{s} } )^{2} =17.63*(\frac{1.5}{0.8621} )^{2} =53.3727min$

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3 years ago