Solve the problem.The strength S of a rectangular wooden beam is proportional to its width times the square of its depth. Find the dimensions of the strongest beam that can be cut from a 
cylindrical log. (Round answers to the nearest tenth.)
A. w = 7.5; d = 10.6
B. w = 8.5; d = 9.6
C. w = 8.5; d = 11.6
D. w = 6.5; d = 11.6
Answer: A
Mathematics
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Express the vector as a product of its length and direction.-7i + 7j + 7k
A. 7( -i + j + k)
B. 7
C. 7
D. 
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The polar coordinates of point P are given. Find all of its polar coordinates.P = (9, 75°)
A. (9, 75° + 360n°) or (-9, 75° + 360n°) B. (9, 75° + 180n°) or (-9, 75° + 180n°) C. (9, 75° + 360n°) or (9, -75° + (2n + 1)180°) D. (9, 75° + 360n°) or (-9, 75° + (2n + 1)180°)
Mathematics
Provide the appropriate response.Determine the number of real and imaginary solutions of the equation x9 = 1.
A. 1 real; 8 imaginary B. 0 real; 9 imaginary C. 1 real; 0 imaginary D. 9 real; 0 imaginary
Mathematics
Evaluate the spherical coordinate integral.
A. 
?2
B. 
?
C. 
?2
D. 
?
Mathematics