Find the magnitude or direction angle of the given vector as indicated.u = 8[(cos 30°)i + (sin 30°)j]; Find the magnitude.
A. 8
B. 4
C. 16
D. 2
Answer: A
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Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = 2xex2, y(1) = 3, h = 0.1
A. y1 = 3.8980, y2 = 4.6358, y3 = 5.6488 B. y1 = 3.1893, y2 = 3.9271, y3 = 4.9400 C. y1 = 2.8349, y2 = 3.5727, y3 = 4.5857 D. y1 = 3.5437, y2 = 4.2814, y3 = 5.2944
Find the domain of the rational function.f(x) = 
A. All real numbers except - 
and 0
B. All real numbers except - 
C. All real numbers except 
and 0
D. All real numbers except 
Write the augmented matrix associated with the system.
A. 
B. 
C. 
D. 
Solve the inequality. Graph the solution set and write the solution set in interval notation.(4x - 5)(x + 6) ? 0
A. [-6, ?)
B. 
C. 
D. (-?, -6] ? 
