Solve the inequality by the test-point method. Write the solution in interval notation.x2 - 2x - 16 ? 0
A. (-?, -
] ? [
, ?)
B. (-?, 1 - 
] ? [1 + 
, ?)
C. [1 - 
, 1 + 
]
D. (-?, 1 - 
) ? (1 + 
, ?)
Answer: B
Mathematics
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Provide an appropriate response.True or false? The solution of the equation 7y - 6 = 7y + 3 is 0.
What will be an ideal response?
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Simplify.
A. 68 B. Not a real number C. 28 D. 92
Mathematics
Integrate the function.
A. 
sin-1 
x + C
B. 
sin-1 
x + C
C. 
sec-1 
x + C
D. 
sec-1 
x + C
Mathematics
Use De Moivre's theorem to simplify the expression. Write the answer in a + bi form.(3(cos 120° + i sin 120°))4
A. 70.15 - 40.5i B. 2.60 - 1.5i C. -1.5 + 2.60i D. -40.5 + 70.15i
Mathematics