Simplify the given expression.-35

A. -15
B. -243
C. 15
D. 243

Answer: B

Mathematics

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Solve the problem.The current in the circuit is 8.30 mA. Determine the magnitude of the impedance across the capacitor and the resistor (between points a and c).XC = 1500 ?R = 1950 ?XL = 2100 ?  ? I

A. Z = 2866 ? B. Z = 5166 ? C. Z = 2460 ? D. Z = 3450 ?

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Choose the equation that matches the graph.

A. f(x) = x2 - 3x - 9 B. f(x) = -x2 + 3x - 9 C. f(x) = -x2 - 3x - 9 D. f(x) = x2 + 3x + 9

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Solve the quadratic equation using the quadratic formula.x2 + 4x - 7 = 0 

A. {2 - , 2 + }
B. {-1 - , -1 + }
C. {2 + }
D. {-2 - , -2 + }

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Find the integral. dx

A. - (x4 + 7)-1/2 + C
B. (x4 + 7)3/2 + C
C. (x4 + 7)3/2 + C
D. (x4 + 7)3/2 + C

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Mathematics