The radius of a circle is 15 inches. A chord is drawn 4 inches from the center of the circle. How long is the chord?
1 answer:
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<u>Answer:</u>
- The solution of the equation is (-1,-2)
<u>Step-by-step explanation:</u>
- => x - 6y = 11
-6x + 6y = -6
- => 6(x - 6y) = 6(11)
-6x + 6y = -6
- => 6x - 36y = 66
-6x + 6y = -6
- => -30y = 60
- => y = -2
- => x - 6(-2) = 11
- => x + 12 = 11
- => x = -1
Hence, the solution of the equation is (-1,-2)
Hoped this helped.
Answer:
Step-by-step explanation:
You use the given information in the standard form of a circle equation to solve for r. We have (h, k) which is the center and a point (x, y). The standard equation for a circle is
Filling in:
and
and
Now that we used the coordinate we don't need it anymore. x and y go back into the equation as x and y, not numbers. We do, however, need the center. Writing the equation:
which is choice D.