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Mkey [24]
3 years ago
9

Nathalie has some quarters, dimes, and nickels. The ratio of the number of quarters to the number of dimes to the number of nick

els that she has is $9:3:1$. The total value of these coins is $18.20. How many coins does Nathalie have?
Mathematics
1 answer:
Veronika [31]3 years ago
4 0

Answer:$18.20

Step-by-step explanation:

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What is the answer to > solve 4cos (theta/3) -2 = 0, over [0, 4pi)
Vesna [10]

Hello from MrBillDoesMath!

Answer:  

@ =   pi/3 (or 60 degrees) or @ = 7 pi/3 (or 420 degrees)


Discussion:

Let "@' denote the angle "theta". We are asked to find @ in the interval [0, 4 pi)

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4cos(@) - 2 = 0.                Adding 2 to both sides

4 cos(@) - 2 +2 = 2  =>

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Thank you,

MrB

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