Which is an equivalent expression using a positive exponent?
( 3/5 )⁻⁸ ÷ ( 3/5 )⁻⁴
( 3/5 )⁴
( 3/5 )¹²
( 5/3 )³²
( 5/3 )⁴
Which is an equivalent expression using a positive exponent?
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To simplify the expression ((3/5)^{-8} ÷ (3/5)^{-4}), we can use the property of exponents that states (a^{-m} ÷ a^{-n} = a^{n-m}).
So, we have:
[
(3/5)^{-8} ÷ (3/5)^{-4} = (3/5)^{-8 – (-4)} = (3/5)^{-8 + 4} = (3/5)^{-4}
]
Now, to express it with a positive exponent, we can use the rule (a^{-m} = 1/a^{m}):
[
(3/5)^{-4} = frac{1}{(3/5)^{4}} = (5/3)^{4}
]
Thus, the equivalent expression using a positive exponent is ((5/3)^{4}).
The correct answer is ((5/3)^{4}).
To simplify the expression ((frac{3}{5})^{-8} div (frac{3}{5})^{-4}), we apply the property of exponents which states that (a^{-m} = frac{1}{a^m}) and also the rule for dividing exponents: (a^m div a^n = a^{m-n}).
1. Rewrite the expression as:
[
(frac{3}{5})^{-8} div (frac{3}{5})^{-4} = (frac{3}{5})^{-8 – (-4)} = (frac{3}{5})^{-8 + 4} = (frac{3}{5})^{-4}
]
2. Convert the negative exponent to a positive one:
[
(frac{3}{5})^{-4} = frac{1}{(frac{3}{5})^4} = (frac{5}{3})^{4}
]
Thus, the equivalent expression using a positive exponent is ((frac{5}{3})^{4}).
The correct answer is ((5/3)^{4}).