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 start with a digit?
A. 10 × 354
B. 10 × 364
C. 364
D. 10 × 264
E. none of these
Answer: B
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Solve the problem.A private shipping company will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 90 in. Suppose you want to mail a box with square sides so that its dimensions are 
and it's girth is 
What dimensions will give the box its largest volume?
A. 30 in. × 15 in. × 30 in. B. 20 in. × 20 in. × 15 in. C. 15 in. × 15 in. × 75 in. D. 15 in. × 15 in. × 30 in.
Factor completely.x2 - x - 45
A. (x - 5)(x + 9) B. cannot be factored C. (x + 5)(x - 9) D. (x - 45)(x + 1)
Provide an appropriate response.Write in complex form: 6 - 
A. 6 + 2i B. o + 4i C. 6 - 2i D. 8 + 0i
Describe the given set of points with a single equation or with a pair of equations.The circle in which the plane through the point (5, 6, 9) perpendicular to the x-axis meets the sphere of radius 13 centered at the origin.
A. y 2 + z2 = 169 and x = 5 B. y 2 + z2 = 119 C. y 2 + z2 = 144 and x = 5 D. x2 + y 2 + z2 = 169