Write the integral that gives the surface area generated when the curve is revolved about the x-axis. Do not simplify.y = cotx on 
A. 
dx
B. 
dx
C. 2?
dx
D. 2?
dx
Answer: D
Mathematics
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Change the order of integration and evaluate the integral.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
A parallel circuit has G = 500 æS and BC = 300 æS. Convert to an equivalent series circuit.
a. R = 5.6 Kê, XC = 5.6 Kê b. R = 3.3 Kê, XC = 7.2 Kê c. R = 4.7 Kê, XC = 3.3 Kê d. R = 1.47 Kê, XC = 882 ê e. R = 7.2 Kê, XC = 5.6 Kê
Mathematics
Solve the equation by completing the square.x2 + 18x = -62
A. {-18 + 
}
B. {9 + 
}
C. {-9 - 
, -9 + 
}
D. {9 - 
, 9 + 
}
Mathematics
Multiply. Simplify and leave the numerator and denominator in your answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics