Solve the system using determinants.-4x - 9y - z = -93 x + 5y - 5z = 27-6x + y + z = 1
A. (2, -9, -4)
B. (9, 4, 9)
C. (2, 9, 4)
D. (3, 7, 4)
Answer: C
Mathematics
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Solve the inequality. Write the solution set in interval notation.
t - 
t > t - 
A. 
B. 
C. (0, ?)
D. (-1, ?)
Mathematics
Solve the problem. Simplify the fraction, if possible.In a art class containing 58 students, there are 8 freshmen, 11 sophomores, 6 juniors, and the rest are seniors. What fraction of the class is seniors?
A. 
B. 
C. 
D. 
Mathematics
Write an equation for the parabola with vertex at the origin.Focus (5, 0)
A. x2 = 20y B. y2 = 20x C. y2 = 5x D. x2 = 5y
Mathematics
Round the whole number to the given place.467,495 to the nearest hundred
A. 467,000 B. 468,000 C. 467,500 D. 467,400
Mathematics