Perform the indicated operation. Write the result in standard form.(3 + 9i)(5 + 8i)
A. -57 - 69i
B. -57 + 69i
C. 72i2 + 69i + 15
D. 87 + 21i
Answer: B
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Solve.Find the area of a circular flower bed whose diameter is 4016 feet. (Use ? = 3.14 as an approximate value.)
A. 50,642,723.8 ft2 B. 12,660,681 ft2 C. 12,610.24 ft2 D. 6305.12 ft2
Determine if the given ordered triple is a solution of the system.x + 4y + 3z = -8 3y + 3z = -9 z = -1(-1, -2, 3)
A. No B. Yes
Find a set of parametric equations for the conic section or the line.The line segment starting at (2, -3) with t = 0 and ending at (14, -27) with 
A. x = 2t + 3, y = -3t - 6, for 0 ? t ? 4 B. x = 3t + 2, y = -6t - 3, for 0 ? t ? 4 C. x = -6t - 3, y = 3t + 2, for 0 ? t ? 4 D. x = -3t - 6, y = 2t + 3, for 0 ? t ? 4
Find the determinant of the matrix  figure 1.png)
, if it exists.
What will be an ideal response?