Write each expression using a single exponent.
x9/x2
A. x11
B. x7
C. 7
D. x5
A. x7
A. x11
To write the expression (x^9)/(x^2) using a single exponent, we need to use the exponent rules for division. According to the rule, when we divide expressions with the same base, we subtract the exponents.
In this case, we have x raised to the power of 9 in the numerator and x raised to the power of 2 in the denominator. Therefore, when we divide x^9 by x^2, we can subtract the exponents:
x^9 / x^2 = x^(9 - 2)
Simplifying further, we subtract the exponents:
x^(9 - 2) = x^7
So, the expression (x^9)/(x^2) can be written as x^7.
Therefore, the correct answer is B. x^7.