Rewrite the series using summation notation. Use 1 as the lower limit of summation.3(12) + 3(22) + . . . + 3(62)
A. 
B. 
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D. 
Answer: B
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Simplify the complex number to its rectangular form.
2 - j8
A. 81 B. 80 C. -79 D. 79
Solve the problem.The average price for a gallon of milk from 1990 to 2000 can be approximated by P(x) = .102(x - 1990) + 1.87, where x is the year. Evaluate P(1998) and interpret the result.
A. P(1998) = 1.95; the average price of a gallon of milk in 1998 was $1.95. B. P(1998) = 2.69; the average price of a gallon of milk in 1998 was $2.69. C. P(1998) = 2.69; the average price of a gallon of milk in 1998 was $2.69 more than in 1990. D. P(1998) = 2.78; the average price of a gallon of milk in 1998 was $2.78.
Find the distance in the xy-plane between the two points. Round an approximate result to the nearest hundredth.(- 2, -2) and (0, -8)
A. 6 B. 20 C. 3.16 D. 6.32
Solve the equation.-7r + 8 = -9 + 5r
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B. 
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D. 