Solve the equation by completing the square.2x2 + 8x = -5

A.  ,  
B.  ,  
C.  ,  
D.  ,  


Answer: D

Mathematics

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Find the extreme values of the function subject to the given constraint.  

A. Maximum: 144 at    and    minimum: -144 at    and  
B. Maximum: 144 at    minimum: -144 at  
C. Maximum: 144 at    minimum: 0 at  
D. Maximum: 144 at    and    minimum: -144 at    and  

Mathematics

Find the exact area of the surface obtained by rotating the given curve about the x-axis.

Mathematics

The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January thru June?

A.  $9,200 B.  $12,150 C.  $13,000 D.  $11,000

Mathematics

Find the volume of the solid. Use  for ?.

A. 78 cu cm
B. 4400 cu cm
C. 1100 cu cm
D. 314 cu cm

Mathematics