Perform the indicated operations.9 - 9{3 - [7 + (-7)]}
A. 0
B. -18
C. -0
D. 108
Answer: B
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Solve the problem.Use series to estimate the integral's value to within an error of magnitude less than 10-3.
A. 0.1559 B. 0.2004 C. 0.09963 D. 0.1006
Solve the equation for the indicated variable.5 - (n + 
x) = 5n for n
A. 
B. 
C. -40 n + 50
D. 
Solve the problems.Brand X copier has improved its copier so that it produces 13% more copies than its old model. If the old model ran 419 copies per hour, how many copies would the new model run? Round your answer to the nearest whole number.
A. 458 copies per hour B. 224 copies per hour C. 434 copies per hour D. 473 copies per hour
The graph of a quadratic function is given. Choose the function's equation.
A. f(x) = x2 + 3 B. f(x) = x2 - 3 C. f(x) = x2 + 6x + 9 D. f(x) = x2 - 6x + 9