Use the quadratic formula to solve the equation.6x2 + 12x = - 3
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify the expression. 
A. 
B. - 
C. 
D. - 
Mathematics
Solve the problem.Suppose that the salinity S of ocean water at a given depth d is modeled by the equation 
where S is measured in grams salt per kilogram water and d is measured in meters. What is the salinity when the depth is 931 m? Round your answer to the nearest hundredth.
A. 95.63 g salt/kg water B. -27.25 g salt/kg water C. 92.63 g salt/kg water D. 36.15 g salt/kg water
Mathematics
Graph the inequality.-2x - 4y ? -8
A. 
B. 
C. 
D. 
Mathematics
Solve.The distance light travels in one year called a light-year is 5.87 × 1012 miles. How many years would a satellite take to travel 2.2 light-years at a speed of 800,000 miles per day?
A. 7,337,500 yr B. 16,142,500 yr C. 20,103 yr D. 44,226 yr
Mathematics