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scZoUnD [109]
2 years ago
11

What is the solution to the system of equations 2x + 3y = 40 and y = x +10?oy - y - 12​

Mathematics
1 answer:
marissa [1.9K]2 years ago
4 0

Answer:

hope this is correct

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Write the period that has the number 913
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Select 3 ratios that are equivalent to 8:20​
guapka [62]

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4:10, 2:5 16:40

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Order from least to greatest 1/5 1/2 and 1/3
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Step-by-step explanation:

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Over the interval [0,2pi), what are the solutions to cos(2x) = cos(x)? check all that apply​
kykrilka [37]

\cos(2x)  =  \cos(x)

Solution (1)

2x = x + 2k\pi

2x - x = 2k\pi

x = 2k\pi

for k=0 / for k=1 / for k=-1

x=0 / x=2π / x=-2π

acc / acc / rej

solution (2)

2x =  - x  + 2k\pi

2x + x = 2k\pi

3x = 2k\pi

x =  \frac{2k\pi}{3}

for k=0 / for k=1 / for k=-1

x=0 / x=2π/3 / x=-2π/3

acc / acc / rej

Note that i'm trying values of K which make the answer belong to our interval;

So our solution which i will represent as a set is;

S € {0,2π/3,2π}

6 0
2 years ago
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