Write an equation in standard form for the conic shown.
A. x2 + 4y2 = 0
B. x2 + 4y = 0
C. y2 + 4x = 0
D. x2 - 4y = 0
Answer: B
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Completely factor the expression.
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A. 
B. 
C. 
D. 
E. 
Give an appropriate answer.The two fastest times in a 100-meter sprint are 9.10 seconds and 9.95 seconds. Which time is faster?
A. 9.95 B. 9.10 C. Not enough information to determine
Solve the investment problem.Roberto invested some money at 6%, and then invested $4000 more than twice this amount at 9%. His total annual income from the two investments was $3480. How much was invested at 9%?
A. $3000 B. $30,000 C. $12,000 D. $26,000
Solve the problem.One rope pulls a barge directly east with a force of 47 N, and another rope pulls the barge directly north with a force of 76 N. Find the magnitude of the resultant force acting on the barge.
A. 123 N B. 3600 N C. 89 N D. 29 N