Find sum of the pair of complex numbers.9i, -3
A. 6i
B. -3 - 9i
C. 9 - 3i
D. -3 + 9i
Answer: D
Mathematics
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Determine whether the given equation is rational or non-rational.9 = 
A. Rational B. Non-rational
Mathematics
Write the number in standard notation.4.342 × 104
A. 43,420 B. 434,200 C. 173.68 D. 4342
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = (x + 3)(x + 7)
A. x-axis B. origin C. y-axis D. x-axis, y-axis, origin E. none
Mathematics
Use Heron's formula to solve the problem.An architect has measured the length of the sides of a triangular yard as 180 ft, 200 ft, and 
Find the area of the yard. Round to the nearest whole number. 
A. 1000 ft2 B. 17,616 ft2 C. 1415 ft2 D. 12,456 ft2
Mathematics