Simplify to the form a + bi.i398 + i79
A. -1 + i
B. 1 + i
C. 1 - i
D. -1 - i
Answer: D
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Solve the problem.A trough is to be made with an end of the dimensions shown. The length of the trough is to be 
long. Only the angle ? can be varied. What value of ? will maximize the trough's volume?
A. 8° B. 30° C. 52° D. 32°
Consider the functions f and g as shown in the graph. Answer the question.What is the value of (f + g)(3)?
A. 0 B. 1 C. 3 D. -1
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 14 meters, b = 20 meters, c = 10 meters
A. 31 square meters B. 62 square meters C. 124 square meters D. 126 square meters
Write an equation for a function that has a graph with the given characteristics.The shape of y = x3 is shifted 5.3 units to the right and then vertically shrunk by a factor of 0.6.
A. f(x) = 0.6x3 + 5.3 B. f(x) = 5.3(x - 0.6)3 C. f(x) = 0.6(x + 5.3)3 D. f(x) = 0.6(x - 5.3)3