Compute the extension totals and the invoice total.
A. 
B. 
C. 
D. 
Answer: A
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Find the work done by F over the curve in the direction of increasing t.F = -5zi + 7xj + 7yk; C: r(t) = ti + tj + tk, 0 ? t ? 1
A. W = 3
B. W = 9
C. W = 
D. W = 18
Determine which property of absolute value justifies the statement.
? 
+ 
A. Property 4: the absolute value of the sum of the numbers is less than or equal to the sum of the two numbers. B. Property 4: the sum of two numbers is less than or equal to the absolute value of the sum of the numbers. C. Property 5: the absolute value of the sum of two numbers is less than or equal to the sum of their absolute values (the triangle inequality). D. Property 5: the sum of the absolute values of two numbers is less than or equal to the absolute value of their sum (the triangle inequality).
Solve the inequality, then graph the solution.1 < -2x + 3 ? 9 
A. [-3, 1)
B. (-3, 1]
C. (-1, 3]
D. [-1, 3)
Solve the linear system by using an inverse matrix.
A. {(5, -1)} B. {(-5, 1)} C. {(1, -5)} D. {(-1, 5)}