Solve the equation by completing the square.x2 + 15 = -12x
A. {6 + 
}
B. {-6 ± 
}
C. {-12 + 
}
D. {6 ± 
}
Answer: B
Mathematics
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Decide whether the statement is true or false.The sum of the interior angles of a regular heptagon is 900°.
A. True B. False
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Find the exact value of the expression.tan 45° - sin 60°
A. - 
B. 
C. 
D. 
Mathematics
Add.22 + 22
A. 43 B. 0 C. 45 D. 44
Mathematics
Use the given graph of y = ax + b to solve the inequality. Write the solution set in interval notation.5x - 8.8 > 0
y = 5x - 8.8
A. (1.8, ?) B. (-?, 1.8) C. [1.8, ?) D. (-?, 1.8]
Mathematics