Solve the system by graphing. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x. 3x + y = 13 9x + 3y = 39
A. Inconsistent, ?
B. Dependent, (x, - 3x + 13)
C. (5, -2)
D. (0, 13)
Answer: B
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -6 and x = 6. The cross sections perpendicular to the x-axis between these planes are squares whose diagonals run from the semicircle y = - 
to the semicircle y = 
.
A. 
B. 
C. 1152
D. 576
Solve.Find the minimum value of the function 
A. 0
B. - 
C. - 
D. - 
Solve the problem.An electrician has to choose different types of wire for different applications. The size of the diameter of the wire is inversely related to the gauge of the wire. The chart below shows some different gauges of wire and their approximate diameters. Use the chart to answer the question. 
Write the diameter of 16 gauge wire in words and as a fraction.
A. Thirty-two ten-thousandths inch; 
= 
B. Thirty-two thousandths inch; 
= 
C. Thirty-two hundredths inch; 
= 
D. Ninety-four thousandths inch; 
= 
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1