Simplify.
A. x2
B. x2
C. x4
D. x4
Answer: A
Mathematics
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Evaluate the sum.
A. 8 B. 14 C. 30 D. 22
Mathematics
Use special right triangles to evaluate the expression.cot - sin
A. -
B.
C. -
D.
Mathematics
Multiply.(5 + 4i)(8 - 9i)
A. -36i2 - 13i + 40 B. 76 - 13i C. 76 + 13i D. 4 + 77i
Mathematics
Provide an appropriate response.Sketch the graph of f(x) = -x2. At which of these points is the function decreasing?
A. 0 B. 2 C. -2 D. -4
Mathematics