A computer password is made up of five characters. Each character can be a capital letter (A through Z) or a digit (0 through 9).How many passwords do not start with the digit 0?
A. 364
B. 365 - 1
C. 355
D. 35 × 364
E. none of these
Answer: D
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 
, y = 0, x = 5, x = 7
A. 15? B. 30? C. 20? D. 10?
Use Descartes' rule of signs to find the number of possible positive, negative, and nonreal roots for the following equation.
?
?
A. 0 positive; 0 negative; 15 nonreal B. 1 positive; 0 negative; 14 nonreal C. 0 positive; 1, 3, or 5 negative; 10, 12 or 14 nonreal D. 0 or 2 positive; 1 or 3 negative; 10, 12 or 14 nonreal E. none of these
Solve the problem.Find the temperature at which the Celsius and Fahrenheit scales coincide.
A. 0° B. 42° C. -40° D. -22°
A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.cosh x = 
, x > 0, sinh x =
A. 
B. - 
C. 
D. 