If f'(x)=5^2x-1 what is f(x) ?
1 answer:
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The mean is the sum of all numbers divided by the number of numbers. We can set up an equation:
Where 'x' is the next quiz score she need. Solve for 'x'. Multiply 5 to both sides:
Add:
Subtract 322 to both sides:
So her next quiz score needs to be 73 in order to have a mean score of 79 on all her quizzes.
Where 'x' is the next quiz score she need. Solve for 'x'. Multiply 5 to both sides:
Add:
Subtract 322 to both sides:
So her next quiz score needs to be 73 in order to have a mean score of 79 on all her quizzes.