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21
if you mean XXI -- that is equal to 21
y = x2 - 4x + 3y = x -1Substitute the 2nd equation into the firstx -1 = x2 -4x + 3Rearranging:x2 -4x -x +3 +1 = 0x2 - 5x +4 = 0Solving this quadratic equation in x by factorising gives 2 values for xx1 = 4x2 = 1Substituting these into the original equation for y (y=x-1) givesy1 = 3y2 = 0So the 2 solutions to the equations are:x1=4y1=3andx2 = 1y2 = 0
93
it is equal to equal lol:P
21
if you mean XXI -- that is equal to 21
$100
y = x2 - 4x + 3y = x -1Substitute the 2nd equation into the firstx -1 = x2 -4x + 3Rearranging:x2 -4x -x +3 +1 = 0x2 - 5x +4 = 0Solving this quadratic equation in x by factorising gives 2 values for xx1 = 4x2 = 1Substituting these into the original equation for y (y=x-1) givesy1 = 3y2 = 0So the 2 solutions to the equations are:x1=4y1=3andx2 = 1y2 = 0
these are the 9 sources of energy hope i helped you xx1. coal oil and gas2. nuclear energy3. hydroelectric energy4. solar energy5. wind energy6. biomass energy7. tidal energy8. wave energy9. geothermal energy
one equals
That 8 might equal D. Trashed. "Eight Equals D" is: 8=D Which is a penis smiley -.- ~ Skullcandy88
We are currently in the 21st century, thus the 8th century was 701-799. (Although some would dispute the first year as you imply, it is common to take the year xx1 rather than xx0.)
equals D repeater
(It's a penis) 8=====D 8 = balls D = head
93
93