Determine the sum of the measures of the interior angles of the specified polygon.A heptagon
A. 1260°
B. 720°
C. 900°
D. 1080°
Answer: C
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Solve the given problem by using Laplace transforms.A 20-H inductor, a 180-?F capacitor, and a voltage supply whose voltage is given by 
are connected in series. Find the current as a function of time if the initial charge on the capacitor and the initial current are both zero.
A. i = 0.83t sin 33.34t B. i = 0.83t sin 16.67t C. i = 0.42t sin 16.67t D. i = 0.83t cos 16.67t
Solve.The height of a box is 9 inches. The length is three inches more than the width. Find the width if the volume is 162 cubic inches.
A. 18 in B. 6 in C. 9 in D. 3 in
A manufacturer of doors, windows, and cabinets writes her yearly profit (in thousands of dollars) for each category in a vector as: 
Her fixed costs of production can be described by the vector: 
Use the matrix operations on a graphing calculator to find her income if increasing it two times would cause her profit to be three times as large. (Round to the nearest thousand dollars.)
What will be an ideal response?
Graph the solution set of the system of linear inequalities and label the vertices (if any) of the solution set.
A. 
B. 
C. 
D. 