Question

Write the expression using a single exponent.

Answer 1

Answer:  D.  7^11

Reason:

The rule we use is $a^b*a^c = a^{b+c}$

When multiplying exponentials of the same base, we add the exponents.

The exponents 5 and 6 add to 5+6 = 11

So,

$7^5 \times 7^6 = 7^{5+6} = 7^{11}$

The base stays the same the entire time.

Answer 2

Answer:
D. 7^11
Explanation:
When simplifying exponents you keep the base the same, and add the exponents.