The graph of the linear equation y1 is shown on a graphing calculator screen, along with the x-value of the x-intercept of the line. Use the screen to solve the following equation or inequality.y1 = 0
A. {5}
B. {0}
C. {-3}
D. Cannot be determined
Answer: C
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Multiply.-1.53 ? (-3.1)
A. 4.63 B. -1.57 C. 4.743 D. -4.63
Use the Gauss-Jordan method to solve the system of equations.x - y + z = -7x + y + z = 3x + y - z = -3
A. (3, -5, 5) B. (-5, 5, 3) C. (-5, 3, 5) D. No solution
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 
, y = 5, x = 0
A. 50?
B. 
?
C. 
?
D. 
?
Solve the problem.Suppose a person can measure the length of a board to within 
inches. A board is measured to be 20
inches. Write an absolute value inequality which describes the possible range of values for the true length, L, of the board. Solve the inequality.
A. 
? 20
The board could actually be between 20
inches and 
inches long.
B. 
? 
The board could actually be between 
inches and 
inches long.
C. 
? 20
The board could actually be between 
inches and 
inches long.
D. 
? 
The board could actually be between 
inches and 
inches long.