Find the eccentricity e of the ellipse.4x2 + y2 = 36
A. 
B. 
C. 
D. 
Answer: B
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Solve the triangle.a = 9, b = 6, c = 4
A. A = 32.1°, B = 127.2°, C = 20.7° B. A = 127.2°, B = 32.1°, C = 20.7° C. A = 127.2°, B = 20.7°, C = 32.1° D. A = 32.1°, B = 20.7°, C = 127.2°
Write the equation of the line whose graph is shown.
A. y = - x + 3 B. y = - x - 3 C. y = x + 3 D. y = x - 3
Write the rate as a unit rate.In a region, the total number of students enrolled in public schools in a recent year was 455,057. At the same time, there were 24,432 public school teachers. Write a unit rate in students per teacher. Round to the nearest whole student.
A. 20 students/teacher B. 21 students/teacher C. 18 students/teacher D. 19 students/teacher
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 3x + 5y = -102x + 4y = -6
A. (5, -1) B. (1, -5) C. (-5, 1) D. (-1, 5)