Solve the differential equation subject to the initial condition.x
+ (1 + x)y = 3; y(4) = 4
A. y = 
B. y = 
C. y = 
D. y = 
Answer: D
Mathematics
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Solve the triangle.a = 6, b = 8, C = 70°
A. c = 9, A = 52.8°, B = 57.2° B. c = 6.3, A = 28.6°, B = 81.4° C. c = 8.2, A = 43.5°, B = 66.5° D. c = 10, A = 56.9°, B = 53.1°
Mathematics
Determine whether the lines through each pair of points are perpendicular.(-1, 3) and (9, 17); (7, 10) and (14, 15)
A. perpendicular B. not perpendicular
Mathematics
Solve the problem.In the following formula, f(x) is the minimum number of hours of studying required to attain a test score of x: 
How many hours of study are needed to score 96?
A. 21.45 hr B. 99.96 hr C. 11.09 hr D. 110.90 hr
Mathematics
Find the equation of the line through the given pair of points. Solve it for y if possible.(-2, -3), (1, 3)
A. y = 6x + 9 B. y = 2x + 1 C. x = -2 D. y = 3x + 3
Mathematics