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Circle
Well, let's recall just what a circle is. A circle is all the points which are the similar distance, r - called the radius, from a point, ( h, k ) - called the center. In other terms, if ( x, y ) is any point that is on the circle then it has a distance of r from the center, ( h, k ) .
If we empolye the distance formula on these two points we would get,
Or, if we square both sides we get,
( x - h )2 + ( y - k )2 = r 2
This is the standard form of the equation of a circle with radius r and center ( h, k ) .
Given the hypotenuse of a right triangle: Given that the hypotenuse of a right triangle is 18" and the length of one side is 11", what is the length of another side? a 2 +
a wheel revolves 360 deegre revolution in one minute .Find how many radians will the wheel subtend in one second
4+15-(4-1/2)
Now come to addition and subtraction of rational expressions. Following are the general formulas. (a/c) + (b/c) = (a + b)/c
ln(4x+19)=ln(2x+9)
Evaluate the slope of the line: Example: What is the slope of the line passing through the points (20, 85) and (30, 125)? Solution: m = 125 -85/30-20 = 4
express the complex number z=5+i divide 2+3i in the form a+ib
3x+3/x2 -6x+5
a ,b,c are complex numbers such that a/1-b=b/1-c=c-1-a=k.find the value of k
circumference of a circle
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