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AleksandrR [38]
3 years ago
11

Find all solutions to the equation 5sin(3pix)+8=4 in the interval 0 < x < 2​

Mathematics
1 answer:
Lina20 [59]3 years ago
3 0

Answer:

First one

Step-by-step explanation:

5sin(3pix)+8=4

5sin(3pix) = -4

sin(3pi x) = -0.8

Basic angle: sin^-1(0.8) = 0.927295218

3pi x = pi+0.927295218, 2pi-0.927295218

3pi x = 4.068887872, 5.355890089, 4.068887872 + 2pi, 5.355890089 + 2pi, 4.068887872 + 4pi, 5.355890089 + 4pi,

x = above values/3pi

x = 0.43217, 0.568, 1.0984, 1.235, 1.765, 1.9016

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Sloan [31]
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2n - 2 + 4n = 6n -2
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whatever value you put into the place of n, you'll get 0 = 0
3 0
3 years ago
Roger bought two plots of land for $120000. He sold the first plot and profited 15%. He sold the second plot and lost 10%. His t
Oxana [17]
X + y = 120000
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Multiply both sides of bottom by 100 to remove decimals

x + y = 120000
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Multiply both sides of top by 10

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Add the two

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He paid $70,000 for the property that made a profit, and paid $50,000 for the property that lost value.
6 0
3 years ago
Read 2 more answers
Will give brainiest and thx for the help
irinina [24]
C would be the correct answer I hope you have an amazing day!
7 0
2 years ago
Cards are dealt, one at a time, from a standard 52-card deck. a if the first 2 cards are both spades, what is the probability th
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Then third card being spades would be 11 / 50

Now there are 10 spades and 49 cards left.
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Fifth card would be 9 / 48.

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Hope this helps.
3 0
3 years ago
What are the solutions to the equation 3x2 + 15x = 18?
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3x {}^{2}  + 15x = 18

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x {}^{2}  + 5x - 6 = 0

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let \:  \alpha \:  and \: \beta  \: be \: the \: roots

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<h2>Your answer is B</h2>

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2 years ago
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