Use a grapher to graph the function.Two signals are seen on an oscilloscope as being at right angles. The equations for the displacement of these signals are 
Graph the figure that appears on the oscilloscope.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Compute the compound interest.John Lee's savings account has a balance of $3233. After 5 years, what will the amount of interest be at 5% compounded annually? Round to the nearest dollar.
A. $161 B. $893 C. $884 D. $898
Mathematics
Solve the problem.Betty bought a $194.00 coat for 30% off the regular price. How much did she save by buying the coat on sale? Round to the nearest cent.
A. $60.20 B. $58.20 C. $61.20 D. $55.20
Mathematics
Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.
A. 
= 
= 
B. 
= 
= 
C. 
= 
= 
Mathematics
Solve the equation.2x + 6(-3x - 4) = -33 - 7x
A. 
B. 
C. 
D. 
Mathematics