Question
Simplify the following: 1. a. \( 5^{-1} \) b. \( -6^{-1} \) c. \( (-8)^{-1} \) d. \( 3^{-2} \) e. \( (-2)^{-3} \) f. \( -4^{-3} \)
Ask by Riley Franklin. in South Africa
Feb 20,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Here are the simplified results:
1. a. \( 5^{-1} = \frac{1}{5} \) or \( 0.2 \)
2. b. \( -6^{-1} = -\frac{1}{6} \) or \( -0.1\dot{6} \)
3. c. \( (-8)^{-1} = -\frac{1}{8} \) or \( -0.125 \)
4. d. \( 3^{-2} = \frac{1}{9} \) or \( 0.\dot{1} \)
5. e. \( (-2)^{-3} = -\frac{1}{8} \) or \( -0.125 \)
6. f. \( -4^{-3} = -\frac{1}{64} \) or \( -0.015625 \)
Solution
Calculate the value by following steps:
- step0: Calculate:
\(3^{-2}\)
- step1: Express with a positive exponent:
\(\frac{1}{3^{2}}\)
- step2: Evaluate the power:
\(\frac{1}{9}\)
Calculate or simplify the expression \( (-8)^{-1} \).
Calculate the value by following steps:
- step0: Calculate:
\(\left(-8\right)^{-1}\)
- step1: Express with a positive exponent:
\(\frac{1}{-8}\)
- step2: Rewrite the fraction:
\(-\frac{1}{8}\)
Calculate or simplify the expression \( -4^{-3} \).
Calculate the value by following steps:
- step0: Calculate:
\(-4^{-3}\)
- step1: Express with a positive exponent:
\(\frac{-1}{4^{3}}\)
- step2: Evaluate the power:
\(\frac{-1}{64}\)
- step3: Rewrite the fraction:
\(-\frac{1}{64}\)
Calculate or simplify the expression \( (-2)^{-3} \).
Calculate the value by following steps:
- step0: Calculate:
\(\left(-2\right)^{-3}\)
- step1: Express with a positive exponent:
\(\frac{1}{\left(-2\right)^{3}}\)
- step2: Evaluate the power:
\(\frac{1}{-8}\)
- step3: Rewrite the fraction:
\(-\frac{1}{8}\)
Calculate or simplify the expression \( 5^{-1} \).
Calculate the value by following steps:
- step0: Calculate:
\(5^{-1}\)
- step1: Express with a positive exponent:
\(\frac{1}{5}\)
Calculate or simplify the expression \( -6^{-1} \).
Calculate the value by following steps:
- step0: Calculate:
\(-6^{-1}\)
- step1: Express with a positive exponent:
\(\frac{-1}{6}\)
- step2: Rewrite the fraction:
\(-\frac{1}{6}\)
Here are the simplified results for each expression:
1. a. \( 5^{-1} = \frac{1}{5} \) or \( 0.2 \)
1. b. \( -6^{-1} = -\frac{1}{6} \) or \( -0.1\dot{6} \)
1. c. \( (-8)^{-1} = -\frac{1}{8} \) or \( -0.125 \)
1. d. \( 3^{-2} = \frac{1}{9} \) or \( 0.\dot{1} \)
1. e. \( (-2)^{-3} = -\frac{1}{8} \) or \( -0.125 \)
1. f. \( -4^{-3} = -\frac{1}{64} \) or \( -0.015625 \)
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Mind Expander
First, let's break these down one by one! 1. a. \( 5^{-1} = \frac{1}{5} \) b. \( -6^{-1} = -\frac{1}{6} \) c. \( (-8)^{-1} = -\frac{1}{8} \) d. \( 3^{-2} = \frac{1}{3^2} = \frac{1}{9} \) e. \( (-2)^{-3} = -\frac{1}{2^3} = -\frac{1}{8} \) f. \( -4^{-3} = -\frac{1}{4^3} = -\frac{1}{64} \)