Graph the solution set of the system of inequalities or indicate that the system has no solution.x2 + y2 ? 81-7x + 7y ? -49 
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B. 
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D. 
Answer: D
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Use a half-angle formula to find the exact value of the expression.cos 
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B. - 
C. - 
D. 
Solve.If the resistance in an electrical circuit is held constant, the amount of current flowing through the circuit is directly proportional to the amount of voltage applied to the circuit. When 4 volts are applied to a circuit, 100 milliamperes of current flow through the circuit. Find the new current if the voltage is increased to 5 volts.
A. 5 milliamperes B. 80 milliamperes C. 125 milliamperes D. 150 milliamperes
Match the correct function to the graph.
A. y = 1 - x2 B. y = -2x2 - 1 C. y = -2x2 D. y = -2x2 + 1
Find the amount accumulated after investing a principal P for t years at an interest rate r.P = $1480, t = 6, r = 7% compounded continuously
A. $49,010.87 B. $3487.50 C. $4752.68 D. $2252.50