Solve the equation for solutions in the interval [0°, 360°).cot
= 1
A. ? = 33°, 57°, 123°, 147°, 213°, 237°, 303°
B. ? = 0°, 90°, 180°, 270°
C. ? = 135°
D. ? = 0°, 45°, 90°, 180°, 225°, 270°, 315°
Answer: C
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Find the product. Write the answer in standard form.(-3 + 6i)(-3 - 6i)
A. 9 + 36i2 B. 9 - 36i2 C. -27 D. 45
Solve the problem.In an analysis of traffic, a certain city estimates the traffic flow as illustrated in the figure below, where the arrows indicate the flow of traffic. If x1 represents the number of cars traveling from intersection A to intersection B, x2 represents the number of cars traveling from intersection B to intersection C, and so on, we can formulate equations based on the principle that the number of vehicles entering the intersection equals the number leaving it. Formulate an equation for the traffic at each of the four intersections.
A. x1 - x4 = 450 x1 - x2 = 650 x2 - x3 = 1400 x3 - x4 = -1100 B. x1 - x4 = -450 x1 - x2 = -650 x2 - x3 = -1400 x3 - x4 = 1100 C. x1 - x4 = -650 x1 - x2 = -450 x2 - x3 = 1400 x3 - x4 = -1100 D. x1 - x4 = 450 x1 - x2 = 650 x2 - x3 = 1400 x3 - x4 = 1100
Provide an appropriate response.Real estate or real property is defined as:
A. improvements, such as water and sewer systems B. any type of structure C. land D. all of these are appropriate as real estate or real property
Solve. Round to the nearest tenth, if necessary.8,159 is 127% of what number?
A. 642,440.945 B. 6,424.4 C. 64.2 D. 642.4