21 spools* (6.75 m/ 1 spool)= 141.75 m.
141.75 m* ($2/ 1 m)= $283.5
The total cost if the ribbon is sold for $2 per meter is $283.5
I hope this helps
Answer: 10 dogs and 30 humans
Step-by-step explanation: 10 dogs x 4 legs each = 40 legs
30 humans x 2 legs each = 60 legs
40 dog legs + 40 human legs = 100 total legs in the house
Answer:
600+30+0+0.0+0.05+0.002
Step-by-step explanation:
Six hundred thirty and fifty-two thousandths
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Recall that
sin²(<em>θ</em>) + cos²(<em>θ</em>) = 1
for all <em>θ</em>, and given that cos(<em>θ</em>) < 0, we find that
cos(<em>θ</em>) = -√(1 - sin²(<em>θ</em>)) = -√(1 - (2/5)²) = -√(21)/5
Now,
csc(<em>θ</em>) = 1/sin(<em>θ</em>) = 1/(2/5) = 5/2
and
cot(<em>θ</em>) = cos(<em>θ</em>)/sin(<em>θ</em>) = (-√(21)/5)/(2/5) = -√(21)/2