Evaluate.-4x2 - 7x + 3 for x = 2
A. -27
B. -31
C. -19
D. -37
Answer: A
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One way to weigh a very light object is to weigh a large number of the items and then divide to find the weight of one item. Before dividing, the weight of the packaging must be subtracted to find the net weight. Complete the table below. 
?
A. Net weight: 763 g
Weight of one item in grams: 4 g
Weight of one item in milligrams: 4000 mg
B.
| Net weight: 665 g |
Weight of one item in milligrams: 3500 mg
C. Net weight: 665 g
Weight of one item in grams: 3.8 g
Weight of one item in milligrams: 3800 mg
D. Net weight: 665 g
Weight of one item in grams: 0.3 g
Weight of one item in milligrams: 285.71 mg
Provide an appropriate answer.Let A = 
and B = 
. Show that AB ? BA. Show all your work.
What will be an ideal response?
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Translate the symbolic compound statement into words.Let p represent the statement : "Students are happy" and let q represent the statement: "Teachers are happy."~(p ? ~q)
A. It is not the case that students are happy or teachers are not happy. B. It is not the case that students are happy and teachers are not happy. C. Students are not happy or teachers are not happy. D. Students are not happy and teachers are not happy.