Answer:
the answer is a when you do the math while b and c and d all keep going bit a stops and can no loneger be changed
Step-by-step explanation:
1. distribute 2 to what is in the parentheses ( you should get x over 3 +10)
2. combine both x over 3
cancel out the x and get 6
your answer wpuld be 6 = 10
Scavdfdscdeereedefrrdeeeeeqwwwwwwwwwwwrrtrrrrrresfr
Yes! For example, 10 and 20 have 1, 2, 5, & 10 in common ^.^
It is 35 miles becaues you are adding
35 each hour
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