Solve the problem.Two voltages, V1 = 120 sin(220?t) and 
are added in a circuit to produce the sum 
Graph V in 
by 
and use the graph to estimate values for a and k so that 
Round k to the nearest ten-thousandth, if necessary.
A. a = 150; k = 444.7557
B. a = 150; k = 640.8999
C. a = 15; k = 0.6435
D. a = 150; k = 0.6435
Answer: D
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A. 2r2 sin ? cos ? = 1 B. r2 sin 2? = 2 C. r sin 2? = 2 D. 2r sin ? cos ? = 1
List the like terms of the expression.-9y + 3 - 3 + 5x + y - 5
A. -9y and y are like terms 3, - 3, and - 5 are like terms B. -9y and y are like terms C. -9y, 5x, and y are like terms 3, - 3, and - 5 are like terms D. -9y and y are like terms 3, - 3, 5x, and - 5 are like terms
Write the number in standard notation.4.342 × 104
A. 43,420 B. 434,200 C. 173.68 D. 4342
Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x, y) = exy
A. Saddle point at (0, 0) B. Relative maximum at (0, 0) C. Relative minimum at (0, 0) D. No relative extrema or saddle points.