Use your calculator to find the product.(49)(-63)
A. -3077
B. -3087
C. 3187
D. 3097
Answer: B
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Find the center of mass of a thin plate covering the given region with the given density function.The region bounded below by the parabola 
and above by the line 
, with density 
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 
, 
= 
Classify the statement as either true or false. Do not use a calculator.
is between 9 and 10.
A. True B. False
Write the polynomial in descending powers of the variable with no missing powers.6x3 + 8x5 - 7x - 8
A. 6x3 + 8x5 + 0x2 - 7x - 8 + 0x4 B. 7x9 - 8 C. 8x5 + 6x3 - 7x - 8 D. 8x5 + 0x4 + 6x3 + 0x2 - 7x - 8
Test the equation for symmetry with respect to the given axis, line, or pole.r = 2 - 2 sin ?; polar axis
A. Symmetric with respect to the polar axis B. May or may not be symmetric with respect to the polar axis