Simplify the expression.
A. -y
B. 
C. 
D. 
Answer: C
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Find a parametrization for the line segment beginning at P1 and ending at P2.P1(-5, 4, -5) and P2
A. x = -5t, y = 4t, z = - 
t + 3, 0 ? t ? 1
B. x = 5t - 5, y = 4, z = 
t - 5, 0 ? t ? 1
C. x = 5t - 5, y = 4t, z = 
t - 5, 0 ? t ? 1
D. x = -5t, y = 4, z = - 
t + 3, 0 ? t ? 1
Solve the problem.A brick staircase has a total of 19 steps The first step requires 103 bricks. Each successive step requires 3 fewer bricks than the prior one. How many bricks are required to build the staircase?
A. 2888 bricks B. 1444 bricks C. 2470 bricks D. 1415.5 bricks
Solve. Remember to insert units when writing your answer.A company ships its product in boxes weighing 7 lb 3 oz. The boxes are packed in cartons of 4 boxes each. How much will 3 cartons weigh?
A. 28 lb 12 oz B. 85 lb 4 oz C. 86 lb 4 oz D. 22 lb 4 oz
Write a variable expression to describe the situation.The product of your hourly wage and the amount of time worked is $700. Let h = the hourly wage and t = the number of hours worked.
A. 
= 700
B. h = 700t
C. ht = 700
D. t = 700h