Solve the problem.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 260 vibrations per second and a wavelength of 13.8 ft. Find the wavelength of another tone that has a pitch of 249 vibrations per second.
A. 14.4 ft
B. 4691.3 ft
C. 0.000213 ft
D. 0.07 ft
Answer: A
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Evaluate the limit if one exists.
A. Does not exist
B. 
C. 1
D. 
Find the perimeter.Joe wants to frame his garden with pine lumber. How feet of lumber will he need?
A. 380 ft B. 542 ft C. 37,154 ft D. 532 ft
Find zw or 
as specified. Leave your answer in polar form.z = 1 + iw = 1 - 
iFind 
.
A. 
(cos 15° + i sin 15°)
B. 
(cos 105° + i sin 105°)
C. 
(cos 105° + i sin 105°)
D. 
(cos 15° + i sin 15°)
Solve the problem.The matrix 
represents one week's usage of wood (in board-feet) at two locations of a company that manufactures chairs. Due to differences in transportation costs, the first location pays $0.89 per board-foot and the second location pays $0.94 per board-foot.(a) Find a 1 by 2 matrix representing the cost of the wood.(b) Multiply the given matrix and the matrix found in part a to determine the total cost of wood for that week.
What will be an ideal response?