You would multiply by

.
When you rationalize the denominator, you multiply by the conjugate of the denominator. The conjugate is the same numbers and radicals, but with the sign of the radical switched.
Answer:
There should be about 4 pieces of sandwich left
Since there were 6 pieces

Tim ate<u> 2</u> pieces

Which means 4/6 of the sandwich is left
Hope this helps
<span>0.266666 is the result of 12/45 while 0.266666, therefore, yes, 8/30 is equivalent to 12/45. Is there anything else you need? !</span>
Answer:
slope line 1: -2
slope line 2: -2
slope line 3: 2
line 1 &2: parallel
line 1&3: perpendicular
line 2&3: perpendicular
Step-by-step explanation:
Slope formula: y2-y1/x2-x1
line 1) 2--2/0-2= -2
line 2) -5--1/1--1=-2
line 3) 0--4/-3--5=2
#1 is 560 #2 is 105 #3 is 1980 #4 is 1122 hope it helps