Evaluate the polynomial.P(x) = 2x3 - 4x2 + 31, P( 2)
A. 39
B. 19
C. 21
D. 31
Answer: D
Mathematics
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Solve the differential equation.xy '+ 4y = 
, x > 0
A. y = 
, x > 0
B. y = 
, x > 0
C. y = 
, x > 0
D. y = 
, x > 0
Mathematics
Find the value of d2y/dx2 at the point defined by the given value of t.x = 9 sin t, y = 9 cos t, t = 
A. 2
B. -2
C. - 
D. 
Mathematics
Identify the specified numbers.The real numbers in the following list:7, 
, -13, 0, 
, 
A. 7, -13, 0, 
, 
B. 7, -13, 0, 
C. 7, 
, -13, 0, 
, 
D. 7, -13, 0, 
Mathematics
Find the value of ? in the interval [0°, 360°) that satisfies the given conditions.cos ? = - 
and ? in quadrant III
A. 120° B. 150° C. 240° D. 210°
Mathematics