Describe the figure as completely as possible, using the properties simple, closed, polygonal curve, and polygon.
A. Closed, not simple
B. Polygon
C. Polygonal curve
D. Simple, closed
Answer: D
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Find the gradient ?f.f(x, y) = x8y sin y
A. (x8y cos y + x8 sin y)i + (8x7y sin y)j B. (8x7y cos y)i + (x8y sin y + x8 cos y)j C. (8x7y sin y)i + (x8 cos y + x8y sin y)j D. (8x7y sin y)i + (x8y cos y + x8 sin y)j
Solve the problem.The year y when sales were s million dollars for a particular electronics company can be modeled by the radical equation y = 1.3
- 6,where y = 1 represents 2001, and so on. Use the model to predict the sales for 2006 to the nearest tenth of a million.
A. $88.2 million B. $86.7 million C. $89.7 million D. $91.2 million
Find the measure of the angles.
?A = (6x - 59)°, ?B = (3x - 11)°
A. 143° and 37° B. 37° and 37° C. 143° and 143° D. 53° and 53°
Solve the system using Cramer's rule and a graphing calculator. (Round to two decimal places.)5.27x - 0.53y = 1-5.83x - 9.51y = 6
A. {(-0.12, 0.70)} B. {(0.70, 0.12)} C. {(-0.70, 0.12)} D. {(0.12, -0.70)}