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Anna [14]
3 years ago
6

PLEASE help me with this question! No nonsense answers please. This is really urgent.

Mathematics
1 answer:
JulijaS [17]3 years ago
7 0

Answer:

last option

Step-by-step explanation:

Let's call the original angle x° and the radius of the circle y. The area of the original sector would be x / 360 * πy². The new angle, which is a 40% increase from x, can be represented as 1.4x so the area of the new sector is 1.4x / 360 * πy². Now, to find the corresponding change, we can calculate 1.4x / 360 * πy² ÷  x / 360 * πy² = (1.4x / 360 * πy²) * (360 * πy² / x). 360 * πy² cancels out so we're left with 1.4x / x which becomes 1.4, signifying that the area of the sector increases by 40%.

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Solve the system of equations.<br><br><br> −5x+2y=9<br> y=7x<br> ​
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Answer:

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Step-by-step explanation:

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