Use the fundamental counting principle to count the number of outcomes. How many different 4-letter radio-station call letters can be made if the first letter must be K or W, letters may be repeated, and the call letters cannot end in an O?
A. 456,976
B. 35,152
C. 16,900
D. 33,800
Answer: D
Mathematics
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Solve the linear equation with the intersection-of-graphs method. Approximate the solution to the nearest hundredth if necessary.
x = 3x - 7.1
A. 1.5 B. -5.6 C. -1.5 D. 5.6
Mathematics
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.7x + 11.3y + 3.1z = 3.25.2x - 7.0y - 0.5z = -4.02.4x + 10.0y - 3.5z = 9.1
A. {(-0.1, 0.6, -1.0)} B. {(0.0, 0.1, -0.2)} C. {(0.0, 0.3, -0.5)} D. {(-0.2, 1.3, -2.2)}
Mathematics
What's the difference between a closed and open composition?
What will be an ideal response?
Mathematics