Simplify the expression so there is only one positive power for each base.-5 -5^7÷-5^2 A.1/5^9 B.-5^9 C.-5^5 D.1/5^5

-5^7/-5^2=5^7/5^2= 5^(7-2)=5^5 this is the answer

Step-by-step explanation:

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step-by-step explanation:

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answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints