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Zielflug [23.3K]
3 years ago
8

Please help! Solve for y 3x - 7y + 12 = 5x - 9

Mathematics
1 answer:
belka [17]3 years ago
3 0

Answer:

Step-by-step explanation:

3x - 7y + 12 = 5x - 9

-7y = 5x - 3x - 9 - 12

-7y = 2x - 21

7y = 2x + 21

y = 2/7x + 3

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Answer:

Possible C:

(1 , 1 + 3sqrt(3))

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AB = 6 units

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7 0
4 years ago
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Answer:

2.42 feet

Step-by-step explanation:

the bicycle wheel rotates 5 times and travels 37.94 feet, then we know that the circumference of the wheel (the outside of the wheel as it touches the ground 5 times around) is 37.94/5 = 7.588

 

Then we use the formula for the circumference of a circle: 2(pi)(radius) = circumference

 

We plug in what we know 2(3.14)(radius) = 7.588 and then solve for the radius

 

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We divide pi from both sides (radius) = 1.208

 

Then the last step, we multiply the radius by 2, because we need the diameter, which is double the radius

 

1.208 * 2 = 2.416 or 2.42 rounded up

 

Final answer = 2.42 feet

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