Solve the equation and express the solution in exact form.log 2x = log 5 + log (x - 2)
A. 
B. {
}
C. 
D. {
}
Answer: D
Mathematics
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Solve the problem.Find the center of mass of the solid enclosed between the cone with equation 
and the plane with equation 
if the density at any point is proportional to the distance from that point to the axis of the cone.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Mathematics
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 16 inches longer than the width. Find the width.
A. 8 in. B. 32 in. C. 40 in. D. 24 in.
Mathematics
Find the area. Use 3.14 for ? as necessary.
A. 90 ft2 B. 36 ft2 C. 23 ft2 D. 45 ft2
Mathematics
Use the product rule to simplify.
A. 9x
B. 567x
C. 9
D. 9x
Mathematics