Q. Which exponential expression is equivalent to 9z ?Choose 1 answer:(A) z9(B) z911(C) z91(D) z91
Express 9th Root as Exponent: We need to express the 9th root of z as an exponent. The 9th root of a number is the same as raising that number to the power of 91.
Write Expression for 9th Root of z: The expression for the 9th root of z can be written as z1/9. This is because in general, the nth root of a number x is x1/n.
Analyze Given Options: Now we look at the options given to find which one matches our expression z91. (A) z9 is incorrect because it represents z raised to the 9th power, not the 9th root of z. (B) z911 is incorrect because it represents the reciprocal of the 9th root of z. (C) z91 is incorrect because it represents the reciprocal of z raised to the 9th power. (D) z91 is correct because it represents the 9th root of z.
Identify Correct Answer: The correct answer is (D) z91, which is equivalent to the 9th root of z.
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