Find the center of mass of a thin plate covering the given region with the given density function.The region between the curve y = 
and the x-axis from x = 1 to x = 9, with density ?(x) = 
A. 
= 5, 
= 
B. 
= 5, 
= 
C. 
= 6, 
= 
D. 
= 5, 
= 
Answer: B
Mathematics
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Use the quotient rule to simplify the expression. Write the answer with only positive exponents.
A. -1017
B. 
C. 
D. 1011
Mathematics
Find the moment of inertia (in g?cm2) and the radius of gyration (in cm) with respect to the origin of the given array of masses located at the given points on the x-axis.1.8 g at (6.9, 0), 3.5 g at (9.3, 0)
A. I = 140 g? cm2; R = 5.1 cm B. I = 45 g? cm2; R = 1.7 cm C. I = 45 g? cm2; R = 2.9 cm D. I = 390 g? cm2; R = 8.6 cm
Mathematics
Find the domain of the function.f(x) = ln 
A. (4, ?) B. (1, ?) C. (-4, ?) D. (0, ?)
Mathematics
Simplify.1.1 ÷ 2 + 3 × 0.5 - 0.42
A. 101.89 B. 1.89 C. 4.19 D. 1.19
Mathematics