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PolarNik [594]
3 years ago
15

- Rachel earned $54.79 last week. Morgan earned $50.23. About how much more did Rachel earn?​

Mathematics
2 answers:
katovenus [111]3 years ago
6 0

Answer:

Step-by-step explanation:

4.56 $

Sergeu [11.5K]3 years ago
6 0
Rachel earned $4.56 more than Morgan last week
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PLEASE HELP ILL GIVE FIVE STARS AND MARK BRAINLIEST
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Round off then estimate 18.9*5.2
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3 years ago
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antiseptic1488 [7]

360°/60 = 6

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3 years ago
Find all solutions of the equation in the interval [0, 2pi).
natali 33 [55]

Answer:

Step-by-step explanation:

Begin by squaring both sides to get rid of the radical. Doing that gives you:

sin^2x=1-cosx

Now use the Pythagorean identity that says

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1-cos^2x=1-cosx. Now move everything over to one side of the equals sign and set it equal to 0 so you can factor:

1-cos^2x+cosx-1=0 and then simplify to

cosx-cos^2x=0

Factor out the common cos(x) to get

cosx(1-cosx)=0 and there you have your 2 trig equations:

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The first one is easy enough to solve. Look on the unit circle and see where, one time around, where the cos of an angle is equal to 0. That occurs at

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