The missing number in this simplified exponential expression is B. 19.
In order to solve for the missing number, you can use the exponent rules for division. When you divide exponential expressions with the same base, you subtract the exponents.
In this case, 5^? ÷ 5^7 can be simplified to 5^(? - 7). Since this is equal to 5^9, you can set the exponents equal to each other:
? - 7 = 9
Add 7 to both sides:
? = 16
Therefore, the missing number is 16, option A.
What is the missing number in this simplified exponential expression: 5^? ÷ 5^7 = 5^9 (1 point)
A. 16
B. 19
C. 10
B. 63
1 answer