A(–2, 4), B(4, 4), C(4, –2), D(–2, –2)
-> select some diagonal: AC
midpoint is at A+(1/2)*AC
-> calculate vector AC:
AC=(4-(-2),-2-4)=(6,-6)
-> calculate half length of AC:
(1/2)*AC=(3,-3)
A+(1/2)*AC=
(-2,4)+(3,-3)=(1,1) which is the midpoint
so the first option is correct
Answer:
see attached
Step-by-step explanation:
Answer:
$3.50 for 1 quart
Step-by-step explanation:
Answer:
W = 
Step-by-step explanation:
To transpose the equation with a given subject means to isolate that variable. To move W to the other side, you must first multiply both sides by W:
TW = 2π
Finally, divide both by T to isolate W:
W =
2 x - y = 2
- x + 5 y = 3 / *2
----------------------
2 x - y = 2
+
- 2 x + 10 y = 6
-----------------------
9 y = 8, y = 8/9
2 x - 8/9 = 2
2 x = 2 + 8 /9
2 x = 26/9
x = 13/9
( x, y ) = ( 13/9, 8/9 )
Answer: A ) 1 solution.
