Perform the operation and write the result in the standard form.(5 - 4i) + (3 + 7i)
A. -8 - 3i
B. 8 + 3i
C. 8 - 3i
D. -8 + 3i
Answer: B
Mathematics
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Determine whether the given function satisfies a Laplace equation.f(x, y) = cos(x) sin(-y)
A. Yes B. No
Mathematics
72 + 4
2
A. 149 B. 65 C. 114 D. 89
Mathematics
Rewrite as a single logarithm.2 log2(2x + 5) + 6 log2(6x + 1)
A. 12 log2(2x + 5)(6x + 1)
B. log2((2x + 5)2 + (6x + 1)6)
C. log2(2x + 5)2(6x + 1)6
D. log2
Mathematics
Solve the problem.Use the formula s = r? to determine the value of s in the figure. Round to two decimal places, if necessary.
A. 21.21 in. B. 1215 in. C. 2.36 in. D. 3.82 in.
Mathematics