Answer:
Step-by-step explanation:
<u><em>(1).</em></u> (x - <em>h</em>)² + (y - <em>k</em>)² = <em>r</em>²
where <em>(h, k)</em> are coordinates of a center of the circle with radius <em>r</em>
<u><em>(2).</em></u> ( a ± b )² = a² ± 2ab + b²
~~~~~~~~~~~~~~
( 1 , - 2 ) ; r = 3
( x - 1 )² + ( y + 2 )² = 3²
x² - 2x + 1 + y² + 4y + 4 = 9
x² + y² - 2x + 4y - 4 = 0
a = - 2
b = 4
c = - 4
Answer:
y = -x + 5
Step-by-step explanation:
X, Y, and B is given using fomula y = m(x) + b
Subsitute those variables.
0 = -(5) + b
Solve for m.
0 = -5 + b
+5 +5
b = 5.
Then plug in the b and take out the x and y.
y = -x + 5
Answer:
false
Step-by-step explanation:
Supplementary means that two angles added together must equal 180. An acute angle is one less than 90 degrees, and an obtuse one is greater than 90. They will not always add up to 180.
For example, 24 is an acute angle. 134 is an obtuse angle. But they do not add up to 180 degrees, thus not supplementary.
Incorrect; Only two isosceles triangles can form a rhombus.
Answer:b
Step-by-step explanation:
