Thursday
December 5, 2013

# Posts by B6

Total # Posts: 43

math
Which set of integers is not closed under what operation? + - x Division I thought it was division but I don't understand , can you please explain this. Thanks

math
2x^3+4x^2-3x^2-6x when x=3 I did2(3)^3+4(3)^2-3(3)^2-6(3) 2(27)+4(9)-3(9)-6(3) 54+36-27-18 90-27-18 63-18 45 is this correct? Thanks

math
Daniel needs to purchase 5.6 meters of tape for a project. If each roll of tape contains 80cm andcosts \$2.50, what is the total cost of the tape Daniel must buy? x=cost of tape meters of tape/cost 5.6/x=.8/2.5 x=17.5 I have the cost is \$17.50 Is this correct? They want us to d...

math
solve and express the answer as an improper fraction in lowest terms 5/6-2/3(6-1/2)+3/4 I did 5/6-4+1/3+3/4 -31/6+1/3+3/4 -19/6+1/3+3/4 -38/12+4/12+9/12 -34/12+9/12 -25/12 is this correct? thanks

which expression is equivalent to 3/4x-24. It is a multiple choice questuion a 1/4(3x-48) b 1/4(3x-24) c 3/4(x-32) d 3/4(x+32) I did it by trying each one out I got c 3/4(x-32) mult 3/4 by both 3/4x-24 Is this correct on how to find the answer and is it correct? thanks

math
which expression is equivalent to 3/4x-24. It imultiple choice a 1/4(3x-48) b 1/4(3x-24) c 3/4(x-32) d 3/4(x+32) I did it by trying each one out I got c 3/4(x-32) mult 3/4 by both 3/4x-24 Is this correct on how to find the answer and is it correct? thanks

math
which expression is equivalent to 3/4x-24. It imultiple choice a 1/4(3x-48) b 1/4(3x-24) c 3/4(x-32) d 3/4(x+32) I did it by trying each one out I got c 3/4(x-32) mult 3/4 by both 3/4x-24 Is this correct on how to find the answer and is it correct? thanks

math
In the year 2000,approximately 169,000,000 personal cmputers were used in the US. What is this number expressed in scientific notation? I moved the decimal point 8 times to the left so My answer I got was 1.69x 10to the 8th. Is this correct Thanks

math
solve d/3> or= 6 i mult. both sides by 3/1 d> or=18 Is this correct? Thanks

Math- Reiny can you help me with this question
I know how to do the work, but the way the question is worded I am not sure the answer. The math works comes out to -2 which is b but if you want the number less than -2 the answer is c. Which are they asking for . This is my work. Which is the value is in the solution set fo...

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