Solve the problem.Using the numerals 0 through 9, how many 6-digit serial numbers can be made if the first digit must be 0 or 1 and numerals may be repeated?
A. 200,000
B. 100
C. 1,000,000
D. 118,098
Answer: A
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Find the derivative of the function at P0 in the direction of u.f(x, y, z) = 10x - 2y + 2z, P0(-3, -10, -4), u = 3i - 6j - 2k
A. 
B. 
C. 
D. 
Provide an appropriate response.For any division sentence there is a corresponding multiplication sentence. For example, for the division statement 
the corresponding multiplication sentence is
Consider the division problem 
What do you think the answer is to this division problem? Consider the corresponding multiplication sentence. What conclusion do you arrive at? Explain your answer.
What will be an ideal response?
Write a system of equations for the problem, and then solve the system.Two trains start from towns 572miles apart and travel toward each other on parallel tracks. They pass each other 5.5 hours later. If one train travels 18 mph faster than the other, find the speed of each train.
A. 63 mph; 41 mph B. 61 mph; 43mph C. 51 mph; 53 mph D. 56 mph; 48 mph
Solve.The perimeter of the rectangle is 42 feet. Find its width.
A. 8 ft B. 29 ft C. 16 ft D. 9 ft