Solve the equation by completing the square.x2 + 8x - 5 = 0
A. {-1 - 
, -1 + 
}
B. {-4 - 2
, -4 + 2
}
C. {4 + 
}
D. {-4 - 
, -4 + 
}
Answer: D
Mathematics
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Evaluate the integral.
A. - 
cot (3? + 4) + C
B. 3 cot (3? + 4) + C
C. -cot (3? + 4) + C
D. 6 csc (3? + 4) cot (3? + 4) + C
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Add.68 + 4.732 + 3.869 + 8.62
A. 85.231 B. 85.321 C. 85.221 D. 86.221
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Approximate the area of the circle using 3.14 as an approximation for ?.
A. 43.96 sq ft B. 38.465 sq ft C. 153.86 sq ft D. 76.93 sq ft
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Use the formula for an to find the general term for the arithmetic sequence.a1 = 4, d = -4
A. an = -4n + 8 B. an = -4n - 4 C. an = 4n - 4 D. an = 4n + 4
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