Write the augmented matrix for the system. 2x + 6y + 2z = 18 7x - 2y + 6z = 82 8x + 9y + 6z = 79
A. 
B. 
C. 
D. 
Answer: D
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Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.-6x - 7y = -24-4x + 4y = -16
A. (4, 1) B. (3, 1) C. (4, 0) D. No solution
Give a geometric description of the set of points whose coordinates satisfy the given conditions.(x - 10)2 + (y - 8)2 + (z - 3)2 < 1
A. All points within the lower hemisphere centered at (10, 8, 3) B. No set of points satisfy the given relations. C. All points outside the lower hemisphere centered at (10, 8, 3) D. All points on the lower hemisphere centered at (10, 8, 3)
Use the circle graph to solve the problem.The circle graph shows the percent of the total population of 74,800 of Springfield living in the given types of housing. Round your result to the nearest whole number.
Find the number of people who live in single family houses.
A. 41 people B. 30,668 people C. 44,132 people D. 34,408 people
Given the values of x and y, find an equation of variation in which y varies directly as x.y = 40, when x = 290
A. y = 0.24x B. y = 40x C. y = 7.25x D. y = 0.14x