ikshjbdckoj
8. Is the following statement always, never, or sometimes true?
A number raised to a negative exponent is negative.
always
never
sometimes
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What does (-2)^(-2) equal?
ikshjbdckoj
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-4?
ikshjbdckoj
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that would still be -4 right?
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|dw:1360016190972:dw|
(-2)^(-2) =
Directrix
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that would still be -4 right? --> No.
ikshjbdckoj
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why not?
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What about (-2)^(-3)? Is it positive or negative?
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positive
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>why not? Look at my work above
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I don't understand all of the signs :(
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|dw:1360016415936:dw|(-2)^(-3)
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so a negative and a negative equals a positive?
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It is not that simple. (-2)^(-3) does NOT mean (-2) times (-3). It means 1 divided by (2^3).
ikshjbdckoj
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oh so is the answer never? cuz if you make it into a fraction ita always gonna be positive on the bottom.
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Number raised to negative exponent: (-2)^(-2) = 1/4
Another number raised to negative exponent: (-2)^(-3) = - 1/8
A number raised to a negative exponent can be positive or can be negative.
ikshjbdckoj
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Oh I didn't know that :/ I'm sorry I took so long :/
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Fast is fine but accuracy is everything. (Wyatt Earp) Mathematics takes time and patience. Don't apologize. I'm glad to help.
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so whats the answer