Solve.How many different three-digit numbers can be written using digits from the set {4, 5, 6, 7, 8} without any repeating digits?
A. 10
B. 120
C. 60
D. 20
Answer: C
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The volume of a spherical cancerous tumor is given by the function where r is the radius of the tumor in centimeters. By what factor is the volume of the tumor increased if its radius is quadruple?
Fill in the blank(s) with the appropriate word(s).
Factor using the formula for the sum or difference of two cubes.27x3 + 64
A. (3x + 4)(9x2 + 16) B. (3x + 4)(9x2 + 12x + 16) C. (3x - 4)(9x2 + 12x + 16) D. (3x + 4)(9x2 - 12x + 16)
Based on the graph, find the range of y = f(x).
A. (-10, 10) B. (-?, ?) C. (-?, 0) or {0} or (0, ?) D. (-?, 0) or (0, ?)
Solve the problem.A water tank can be filled in 7 minutes and emptied in 8 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. min
B. min
C. min
D. 56 min