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german
3 years ago
12

There are 1,775 pennies in Isaiah’s jar. If 25 pennies are needed to fill a bag, how many whole bags can Isaiah fill?

Mathematics
2 answers:
bogdanovich [222]3 years ago
4 0

Answer:71

Step-by-step explanation:1775/25

raketka [301]3 years ago
3 0

Answer:

71 bags

Step-by-step explanation:

Each bag: 20 pennies

Pennies count: 1775

Final Answer: 71 bags

Explain:

1775 / 25 = 71

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Find all solutions in the interval [0, 2π). <br> 2 sin2x = sin x
tester [92]

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Let's begin:

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Use double angle identity mentioned on left hand side:

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Simplify a little bit on left side:

4\sin(x)\cos(x)=\sin(x)

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Factor left hand side:

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Add 1 on both sides:

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\cos(x)=\frac{1}{4}

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We know \arccos( ) will render us a value between 0 and 2\pi.

So one solution on the given interval for x is x=\cos^{-1}(\frac{1}{4}).

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Apply \cos^{-1} to both sides:

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Multiply both sides by -1:

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