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Trying to help my kid with math but can't remember how to bring exponents over (-y)^-3=1/1000
Questioner: Rick
Country: United States
Category: Advanced Math
Private: No
Subject: Kids Math
Question: Trying to help my kid with math but can't remember how to bring exponents over (-y)^-3=1/1000
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Hi, Rick,
Study 'negative exponents'. Then you will do:
(-y)^-3=1/1000
(-y)^-3=10^-3
-y = 10
y = -10
etc.
And try to discipline yourself to use mathematical terms. ('bring over' is not one of them) Your own understanding will increase.
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Answers by Expert:
Paul Klarreich
Expertise
I can answer questions in basic to advanced algebra (theory of equations, complex numbers), precalculus (functions, graphs, exponential, logarithmic, and trigonometric functions and identities), basic probability, and finite mathematics, including mathematical induction. I can also try (but not guarantee) to answer questions on Abstract Algebra -- groups, rings, etc. and Analysis -- sequences, limits, continuity. I won't understand specialized engineering or business jargon.
Experience
I taught at a two-year college for 25 years, including all subjects from algebra to third-semester calculus.
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