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OpenStudy (lifeisadangerousgame):
OpenStudy (anonymous):
go to mathway.com type in each of the equations until you get the write answer
OpenStudy (lifeisadangerousgame):
But I won't learn how to do it?
ganeshie8 (ganeshie8):
simplify each option and see if its true for every value of x
ganeshie8 (ganeshie8):
il do a,
u will be doing the rest ok
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OpenStudy (lifeisadangerousgame):
Okay
ganeshie8 (ganeshie8):
a. \(x^3 \ge x^2\)
divide x^2 both sides (retriceuing x ne 0)
\(x \ge 1\)
which is not true when x = 0 so FALSE.
ganeshie8 (ganeshie8):
try other options
ganeshie8 (ganeshie8):
i typed 'a.s.suming x ne 0' lol
OpenStudy (lifeisadangerousgame):
B is wrong, if you plug in 2 for x then its 12 >/= 16 which is false
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ganeshie8 (ganeshie8):
brilliant, verify remaining two
OpenStudy (lifeisadangerousgame):
haha I was trying to figure out why it was retrice XD
ganeshie8 (ganeshie8):
lol ikr....
OpenStudy (lifeisadangerousgame):
I think the answer is C
ganeshie8 (ganeshie8):
lets see :-
\(\large (2x)^2 \ge 3x^2\)
\(\large 4x^2 \ge 3x^2\)
\(\large 4\ge 3\)
which is always TRUE no matter wat happens in the rest of the world. so yess, answer is C
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