Answer:
because it's an odd exponent
Step-by-step explanation:
-2^3 = -(2*2*2)
(-2)^3 = (-2)*(-2)*(-2)
if it was ^4 the sign would be flipped:
-2^4 = -(2*2*2*2) = -16
(-2)^4 = (-2)*(-2)*(-2)*(-2) = 16
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Sorry I don't know anything about that!
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Answer:
-4
Step-by-step explanation:
Answer:
$28.05
Step-by-step explanation:
Since the sale price is 18% off, this means we pay 100-18 = 82% of the original price. 82% = 82/100 = 0.82; using x as the original price, we can set up the equation
0.82x = 23
Divide both sides by 0.82:
0.82x/0.82 = 23/0.82
x = 28.05