Which of the following situations yields data without variability?
1 answer:
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Multiply each of the numbers by a ten to a power that they both become whole numbers.
0.67 *
= 67
0.3 * = 30
Divide as usual.
67 / 30 = 2
So, the answer is 2 1/3.
0.67 *
0.3 *
Divide as usual.
67 / 30 = 2
So, the answer is 2 1/3.
Answer:
see explanation
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k )² = r²
where (h, k ) are the coordinates of the centre and r is the radius
given
x² + y² - 8x + 8y + 23 = 0
collect the x and y terms together and subtract 23 from both sides
x² - 8x + y² + 8y = - 23
using the method of completing the square
add ( half the coefficient of the x / y terms )² to both sides
x² + 2(- 4)x + 16 + y² + 2(4)y + 16 = - 23 + 16 + 16
(x - 4)² + (y + 4)² = 9 ← in standard form
with centre = (4, - 4 ) and r = = 3
this is shown in graph b