Simplify by finding the absolute value.-?-8?
A. 0
B. -8
C. 16
D. 8
Answer: B
Mathematics
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Solve the system of equations by use of determinants. 4x - 7y + 7z = 9-6x + 4y + 4z = 20 3x - 9y - 2z = -52
A. x = 5, y = 4, z = 5 B. x = 4, y = -6, z = -5 C. x = 6, y= 5, z = 6 D. x = 4, y = 6, z = 5
Mathematics
Solve the problem.A contractor needs to know the height of a building to estimate the cost of a job. From a point 94 feet away from the base of the building, the angle of elevation to the top of the building is found to be 
Find the height of the building. Round your answer to the hundredths place.
A. 118.43 ft B. 115.53 ft C. 119.76 ft D. 114 ft
Mathematics
Graph the equation by plotting points.y = 
A. 
B. 
C. 
D. 
Mathematics
Graph the semi-ellipse.y = - 
A. 
B. 
C. 
D. 
Mathematics