Simplify the complex number and write it in standard form.
?

?
A. ?
B. ?
C. ?
D. ?
E. ?8i
Answer: C
Mathematics
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Use the half-angle formulas to simplify the given expression.
A. 6 sin 8x
B. 3 sin 8x
C. 2 sin 8x
D. 3 cos 8x
Mathematics
Solve the equation. +
= 5
A. - , -10
B. , -10
C. - , 10
D. 2, 10
Mathematics
Write the fraction or mixed number as a decimal. Round to the nearest thousandth if necessary.
A. 0.75 B. 0.85 C. 0.8 D. 0.65
Mathematics
Use the Leading Coefficient Test to determine the end behavior of the polynomial function. Then use this end behavior to match the function with its graph.f(x) = 2x2 + 2x + 3
A. falls to the left and falls to the right
B. rises to the left and falls to the right
C. falls to the left and rises to the right
D. rises to the left and rises to the right
Mathematics