Dippy

This page lists questions and answers that were posted by visitors named Dippy.

Questions

The following questions were asked by visitors named Dippy.

Simplify (-2a^2b^3)^2/(2a^2b)^3 p.s. anything after the ^ is the exponent. Thanks

how do you factor completely 3(x - 2)^2 - 3(x - 2) - 6

how do you factor 16x^4 - 40x^2 + 9 I don't understand how the factoring should go. When I think of a way to factor it it doesn't turn out right.

why can't a^2 + b^2 be factored? I seriously don't know how this works out and my text book is no help. Please help.

find a value for k that will make 4x^2 + 6.4x + k a perfect square. again this stuff is kicking my behind

find a value for k that will make 4x^2 + 6.4x + k a perfect square. describe the procedure that you used which requires algebra. I have the answer and it is k = 1.6^2 or 2.56 i just don't get how we got there

I am having trouble with this problem. I have an equation written down but I have my doubts as to how correct it is. I am thinking of 3 consecutive negative numbers. If I multiply the first with the second and then subtract three times the third, the resu...

The square of an integer is 30 more than the integer. Find the integer. Is there some sort of equation to use to solve this? And how can the square of an interger actually be 30 more than the integer? I am confused!

I have my solution to this problem but I am not very confident in it being correct. I just want to see if some one else comes up with the same answer. Solve (x^2 - 2x)(x + 3) = -2x(x = 1)

Reiny I posted a question earlier (about 3:00) and I have a question about your solution. How did you get -4x? I came up with -8x which does not allow for anymore reduction. Please let me know how you did it. Thanks!

damon and bob I am not so bright. When I originally posted my question I mistakenly put an = sign where there should have been a + sign. the equation should read like this: (x^2 - 2x)(x + 3) = -2x(x + 1) What does this do to the solution now???

A high school class wants to raise money by recycling newspapers. The class decided to rent a truck at a cost of $150 for the week. The market price for recycled newspaper is $15 per ton. Write an equation representing the amount of money the class will m...

Suppose y varies directly as x and that y = 21 when x = 3. Find the value of y when x = 5. Would I be wrong if I said y = 35? In using y = kx with the 21 and the 3 k = 7. So if y = 35 and x = 5 then k = 7. Am I correct or am I way off course?

A man walks at a pace of 3 miles per hour. After 2 hours he stops for a rest. Let t be time AFTER the rest when he continues on his walk. Let d be the TOTAL distance traveled since he started. Write an equation linking d and t. Would the equation look som...

I am studying for my final and I have several problems that I need help understanding. Here goes. s = 1/2gt^2 solve for g Tom earns $6,000 less than 2 times as much as Rachel. If their 2 incomes come to $60,000 how much does each make? A train leaves town...

This is for my daughter. find the product of x^2 -4/5 X x + 2/x - 2 could you please show us the work so we can try to understand how it works?

I've never seen a problem like this, please help. I think we have the number part right but what would the unit be once the math is done? Please show me how you came up with the answer so I will know for next time. 30 miles/1 ton x 5280 feet/1 mile x 1 ho...

drwls here is another one of those questions like the last one we submitted if this will help with what they are after. 200 dollars/1 ton x 100 cents/1 dollar x 1 ton/2000 pounds x 1 pound/16 ounces could you please show me how you come up with the answer...

Answers

The following answers were posted by visitors named Dippy.

Reiny how did you get to the -4x? I came up with -8x which does not allow for any more reduction.

Damon thanks for the help. I had the sign wrong. I am having trouble with the whole sign thing. I just submitted my test and I missed 4 of the multiple choice questions and each one was because I had the signs wrong. I had the correct numbers just the wro...

what we have for an equation is what I put down. Thanks for the help.

drwls I am dippy!! It should have been 30 miles/ 1 hour not 1 ton. That was part of the next question.