Solve the quadratic equation in the complex number system by completing the square.x2 + 6x + 25 = 0
A. {1, -7}
B. {-3 - 16i, -3 + 16i}
C. {-3 + 4i}
D. {-3 + 4i, -3 - 4i}
Answer: D
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and the positive 
is 
.
A. y = 
x
B. y = 
x
C. y = 
x
D. y = x
Solve the problem.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.
a = b = 8 m
A. 17 m B. 39 m C. 111 m D. 10.5 m
Write a word name for the number in the sentence.The sales tax rate in Jefferson County is 6.008 percent.
A. Six and eight thousandths B. Six and eight hundredths C. Six and eight ten-thousandths D. Six and eight tenths
Find the sum of the infinite geometric series.
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A. ?
B. ?
C. ?
D. ?
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