Solve the problem.The strength of a rectangular beam ( in pounds per square inch ) varies jointly as the width of the beam ( in inches) and the square of the depth ( in inches). If the strength of a beam that is 2 inches wide and 12 inches deep is 1728 pounds per square inch, what is the strength of a beam that is 10 inches wide and 19 inches deep?
A. 21,675 pounds per square inch
B. 21,660 pounds per square inch
C. 3610 pounds per square inch
D. 21,639 pounds per square inch
Answer: B
Mathematics
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Compute dy/dx for the function.y = sinh2 9x
A. 18 cosh 9x B. 2 sinh 9x cosh 9x C. 2 cosh 9x D. 18 sinh 9x cosh 9x
Mathematics
Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Mathematics
Provide an appropriate response.Explain how the graph of y = 3x - 2 - 3 can be obtained from the graph of y = 3x.
What will be an ideal response?
Mathematics
Write the exponential equation as an equation involving a common logarithm or a natural logarithm.103 = 1000
A. log3
= 10
B. log 
= 3
C. log 
= 1000
D. log3
= 1000
Mathematics