Find the moment or center of mass of the wire, as indicated.Find the moment about the x-axis of a wire of constant density that lies along the curve y = 2
from 
to 
.
A. 21
B. 
C. 14
D. 
Answer: D
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (ln x)ln x
A. 
B. 
(ln x)ln x
C. ln x ln (ln x)
D. 
Mathematics
Write in scientific notation.27,000,000
A. 2.7 × 106 B. 2.7 × 10-6 C. 2.7 × 10-7 D. 2.7 × 107
Mathematics
Write the improper fraction as a mixed number or an integer.
A. -1
B. -3
C. -2
D. -2
Mathematics
Provide an appropriate response.If an object is dropped, the distance it falls after t seconds is given by d = 
gt2. A student is determining how long it would take an object to fall 91 feet on planet x having gravity 9 ft/sec2. The student determines the two solutions 
. Are both correct answers? Why or why not?
What will be an ideal response?
Mathematics