Simplify. Write your answer in the form a + bi, where a and b are real numbers.(7 - 3i) + (1 + 6i)
A. -8 - 3i
B. 8 - 3i
C. -8 + 3i
D. 8 + 3i
Answer: D
You might also like to view...
Rotate the coordinate axes to change the given equation into an equation which has no cross product (xy) term. Identify the graph of the equation as a hyperbola, ellipse, parabola, a straight line, or parallel lines.3x2 + 2
xy + y2 - 9
x + 5y - 18 = 0
A. 4u2 - 
v2 - 11u + 7
v - 18 = 0; Hyperbola
B. 4u2 - 11u - 18 = 0; Parallel lines
C. 4u2 - 11u + 7
v - 18 = 0; Parabola
D. 4u2 + 
v2 - 11u + 7
v - 18 = 0; Ellipse
Solve the problem.The shape of a barbecue pit is like a parallelogram with height of 60 in. and a base of 28 in. It costs $1.00 per ft2 to fill the pit with charcoals. How much does it cost?
A. $1680 B. $11.67 C. $46.67 D. $140.00
Solve the problem.If a rocket is propelled upward from ground level, its height h in meters after t sec is given by h(t) = -9.8t2 + 68.6t. During what interval of time will the rocket be higher than 
A. The rocket will be higher than 98 m for times between, but not including, 4 sec and 7 sec. B. The rocket will be higher than 98 m for times between, but not including, 2 sec and 5 sec. C. The rocket will be higher than 98 m for times up to, but not including, 5 sec. D. The rocket will be higher than 98 m for times up to, but not including, 2 sec.
Solve the equation in the real number system.x4 - 21x2 - 100 = 0
A. {-2, 2} B. {-10, 10} C. {-5, -2, 2, 5} D. {-5, 5}