Factor out a factor with a negative coefficient.-2x2 + 4x - 56
A. 2(x2 - 2x + 28)
B. -2(x2 - 2x + 28)
C. 2(-x2 - 2x + 28)
D. -2(-x2 - 2x + 28)
Answer: B
Mathematics
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Express as a product.ln 
A. ln 
? ln 4
B. 
C. 
ln 4
D. 3 ln 4
Mathematics
The double integral gives the mass of a lamina R. Determine the density ?, the mass, and the center of mass.
A. k; 2k; 
B. k; 2k; 
C. 2k; 2k; 
D. k; 4k; 
Mathematics
Solve the problem.In a right triangle, the sum of the two acute angles can be represented by the formula a + b = 90°. Find the measure of the missing angle of one of the angles measures 22°.
A. 68° B. 112° C. 158° D. 38°
Mathematics
Provide an appropriate response.The average of a group of negative numbers is a 
number.
Fill in the blank(s) with the appropriate word(s).
Mathematics