Answer:
C
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 + 4x - 10y + 20 = 0
Collect x and y terms and subtract 20 from both sides. that is
x² + 4x + y² - 10y = - 20
To obtain standard form use the method of completing the square
add ( half the coefficient of the x/y term )² to both sides
x² + 2(2)x + 4 + y² + 2(- 5)y + 25 = - 20 + 4 + 25
(x + 2)² + (y - 5)² = 9 ← in standard form
with centre = (- 2, 5) and r = = 3 → C
Answer:
in negative numbers the smaller the number the bigger
Step-by-step explanation:
if you would put this from least to greatest the order would be
-1, -5, -13 because negative numbers as the opposite from positive numbers in positive numbers for example 9 and 13. 13 would be bigger just like an alligator would eat the biggest number but for negatives its the same as 6-1 which equals 5. a negative number is like subtraction it just takes away the same number as it is itself from the positive.
for if this isn't the answer you were looking for
1.
a)he is correct 24/12=2
b)291/7 if the number is is rational it is factorable
2.
a)4
b)9
c)8
d)9
The area of the pizza is <span>20.37.
Hope this helps ^^</span>
Answer:
317-a=25
Step-by-step explanation:
less than means minus and is, is equals