ANSWERS
Real #s - CORRECT ANSWERS ✔✔Irrational, rational, and
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whole #s |\
Find the distance between 2 pts. on # line - CORRECT
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ANSWERS ✔✔Take the absolute value of the difference
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between the 2 pts. |\ |\ |\ |\
d(P,Q) = | b - a | |\ |\ |\ |\ |\ |\
Which values must be excluded from the domain of the
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variable in the expression? - CORRECT ANSWERS
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✔✔Substitute the variables into the problem - the |\ |\ |\ |\ |\ |\ |\ |\
denominator cannot equal 0. |\ |\ |\
Negative exponents - CORRECT ANSWERS ✔✔a⁻ⁿ = 1/aⁿ
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Law of Exponents - CORRECT ANSWERS ✔✔(a×)ⁿ = a×·ⁿ
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(a · b)ⁿ = aⁿ · bⁿ
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(aⁿb*)^ = aⁿ^b*^ |\ |\
xⁿx* = xⁿ⁺* |\ |\
xⁿyⁿ = (xy)ⁿ|\ |\
, xⁿ/x* = xⁿ⁻* |\ |\
xⁿ/yⁿ = (x/y)ⁿ |\ |\
x⁰ = 1 |\ |\
a⁰ = 1 if a ≠ 0
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When multiplying exponents, you add them.
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Cannot distribute exponents when adding or subtracting
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|\ Ex → (5x-7)²
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Square roots - CORRECT ANSWERS ✔✔√a² = |a| |\ |\ |\ |\ |\ |\ |\
Tip: Rewrite expressions without negs or neg exponents -
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CORRECT ANSWERS ✔✔... |\ |\
Circle - CORRECT ANSWERS ✔✔A = πr² |\ |\ |\ |\ |\ |\
C = πd or 2πr
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Rectangular box - CORRECT ANSWERS ✔✔v = l · w · h |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\
S.A. = 2LH + 2WH + 2LW
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Sphere - CORRECT ANSWERS ✔✔V = 4/3πr³ |\ |\ |\ |\ |\ |\
S.A. = 4πr² |\ |\