Find the exact value of the expression, if possible. Do not use a calculator.cos (cos-1 0.6)
A. 0.6
B. 0.8
C. 2.5
D. 3.7
Answer: A
Mathematics
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Find the center of mass of a thin plate covering the given region with the given density function.The region between the x-axis and the curve y = 
, 1 ? x ? 2, with density ?(x) = 
A. 
= 
, 
= 3
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Mathematics
Divide.
A. x - 45 B. x + 6 C. x2 + 6 D. x3 - 45
Mathematics
Determine the total turn for the closed curve. Assign a positive measure to counterclockwise turning.
A. -360° B. 720° C. 360° D. 0°
Mathematics
Provide an appropriate response.Beverly rowed upstream for 4 hours. In rowing downstream, her speed was 2 miles per hour faster, and the return trip took only 3 hours. What was her speed each way?
Fill in the blank(s) with the appropriate word(s).
Mathematics