Solve the system by graphing on a calculator. Round to the nearest hundredth if necessary.y = 3-xy = - 
A. {(-1, 3)}
B. ?
C. {(1, -3)}
D. {(1, 3)}
Answer: A
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Given a current flow of 17.5 mA through the network and R1 = 470 ê, R2 = 270 ê and R3 = 1000, what is the total voltage applied to the network?
What will be an ideal response?
Graph the function as a solid line or curve and its inverse as a dashed line or curve on the same axes.f(x) = 4x 
A. 
B. 
C. 
D. 
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.If the speed of light is 3.00 × 108m/sec, how long does it take light to travel 2.29 × 1011 m, the distance from the sun to Mars? Round to one decimal place.
A. 7.6 × 103 sec B. 76 sec C. 7.6 × 102 sec D. 7.6 × 102 min
Based on the graph, find the range of y = f(x).
A. (-?, 0) or (0, ?) B. (-?, 0) or {0} or (0, ?) C. (-10, 10) D. (-?, ?)