dinapearce6078
15.03.2020 •
Mathematics
Find the value of sinA in the figure above.
A) 0.7500
B) 0.6000
C) 1.3333
D) 0.8000
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Ответ:
B
Step-by-step explanation:
Sin(A) = O/H
Sin(A) = 27/45
Sin(A) = 0.6
Ответ:
1) 3 lbs covers 1800 ft2 but we need to find how many ft2 1lb will cover. Divide # of lbs of seed available (3 lbs in this case) into the # of ft2 the available seed will cover (1800ft2 in this case):
1800ft2/3lbs=600ft2
So 1 lb covers 600ft2.
2) Now to find how many lbs 8400 needs. Divide the # of ft2 for 1 lb into the # of ft2 total (8400ft2 in this case):
8400/600ft2 (for 1lb) = 14 lbs
3) 14 lbs is now how many bags? The question does not say how many lbs in 1 bag.
IF ASSUMING the bags are 3lbs each, you divide the # of lbs per bag into the # of total lbs (14lbs in this case).
14lbs/3lb bags= 4.7 bags needed
IF 4lb bags:
14lbs/3lb bags= 3.5 bags needed
IF 5lb bags:
14lbs/5lb bags= 2.8 bags needed
IF 6lb bags:
14lbs/6lbs= 2.3 bags needed