Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.y = 3x + 3y = -2x - 7
A. (-2, -3)
B. (-2, -2)
C. (2, 3)
D. (-2, 3)
Answer: A
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Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 1 and z = 2Density: constant
A. 
B. 
C. 
D. 
Perform the indicated operation.Experiments on a new composite material yield
- 
.Simplify the expression.
A. 3K - 
?
B. K - 
?
C. K - 
?
D. 3K - 
?
In the LORAN (LOng RAnge Navigation) radio navigation system, two radio stations located at A and B transmit simultaneous signals to a ship or an aircraft located at P. The onboard computer converts the time difference in receiving these signals into a distance difference |A| - |B|, and this, according to the definition of a hyperbola, locates the ship or aircraft on one branch of a hyperbola (see the figure). Suppose that station B is located L = 480 mi due east of station A on a coastline. A ship received the signal from B 1280 microseconds (?s) before it received the signal from A. Assuming that radio signals travel at a speed of 1000 ft/?s and if the ship is due north of B, how far off the coastline is the ship? Round your answer to the nearest mile. Select the correct answer.
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Find the slope of the line containing the given points.(5, -3); (-8, 2)
A. - 
B. 
C. 
D. - 