Express in terms of i.
A. 6i
B. ±6
C. i
D. -6i
Answer: A
Mathematics
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Solve the system to the nearest 0.1 for each variable by using a graphing calculator.x = -2.0y + 3-3y = 4.0x + 2
A. x = -2.8; y = 2.9 B. x = -2.5; y = 2.6 C. x = 2.5; y = -2.6 D. x = -2.6; y = 2.8
Mathematics
Find the measure of one interior angle of the polygon.Nonagon
A. 50° B. 140° C. 130° D. 40°
Mathematics
Eliminate the parameter of the pair of parametric equations.x = t + 4, y = t2
A. y = 
+ x + 4
B. y = 
C. y = x2 + 16
D. y = x2 - 8x + 16
Mathematics
Solve the problem.Wind speed varies in the first twenty meters above the ground. For a particular day, let 
compute the wind speed x meters above the ground. At what height is the wind speed 11 meters per second? Round results to the nearest hundredth.
A. 0.97 B. 1.70 C. 0.53 D. 0.59
Mathematics