Solve the problem.How many different 4-letter radio-station call letters can be made if the first letter must be K or W, repeated letters are allowed, but the call letters cannot end in an O?
A. 35,152
B. 456,976
C. 33,800
D. 16,900
Answer: C
You might also like to view...
Find the next term of the sequence. ? 3, 6, 10, 15, ... ?
A. 21 B. 25 C. 46 D. 22 E. 20
Find the measure of ?x in the triangle.
A. 192° B. 96° C. 22° D. 12°
Solve the equation in part (a) graphically, expressing the solution to the nearest hundredth. Then, use the graph to solve the associated inequalities in parts (b) and (c), expressing endpoints to the nearest hundredth.(a) 
= 0; (b) 
> 0; (c) 
< 0
A. (a) {0.86} (b) (0.86, ?) (c) (-?, 0.86) B. (a) {0.25} (b) (0.25, ?) (c) (-?, 0.25) C. (a) {1} (b) (1, ?) (c) (-?, 1) D. (a) {0.40} (b) (0.40, ?) (c) (-?, 0.40)
Find the vertex, focus, directrix, and focal width of the parabola.x2 = 28y
A. Vertex: (0, 0); Focus: (7, 0); Directrix: x = 7; Focal width: 7 B. Vertex: (0, 0); Focus: (7, 0); Directrix: y = 7; Focal width: 112 C. Vertex: (0, 0); Focus: (0, -7); Directrix: x = -7; Focal width: 112 D. Vertex: (0, 0); Focus: (0, 7); Directrix: y = -7; Focal width: 28