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jim_thompson5910 answered: 28583 problems
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test/552656: U^2-v^2+2v-1 1 solutions Answer 360442 by jim_thompson5910(28595)   on 2012-01-04 16:21:48 (Show Source): You can put this solution on YOUR website! I'm assuming you want to factor this. u^2-v^2+2v-1 u^2-(v^2-2v+1) u^2-(v-1)^2 (u-(v-1))(u+(v-1)) (u-v+1)(u+v-1) So u^2-v^2+2v-1 = (u-v+1)(u+v-1)

test/552652: Please help me solve this. It is a Mathematical Expression. Liam has z pennies. How many dollars does he have? Write an expression that models this situation. 1 solutions Answer 360439 by jim_thompson5910(28595)   on 2012-01-04 16:09:47 (Show Source): You can put this solution on YOUR website! 100 pennies = 1 dollar 1 penny = 1/100 dollar z pennies = z/100 dollars So if he has z pennies, then he has z/100 dollars. Ex: he has z = 300 pennies, so he has z/100 = 300/100 = 3 dollars.

Equations/552651: Solve the equation 3(2x-1)=15 with a justification for each step 1 solutions Answer 360438 by jim_thompson5910(28595)   on 2012-01-04 16:08:15 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Add to both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is

absolute-value/552650: what is |x - 3| = 1 1 solutions Answer 360437 by jim_thompson5910(28595)   on 2012-01-04 16:06:46 (Show Source): You can put this solution on YOUR website! |x - 3| = 1 x - 3 = 1 or x - 3 = -1 x - 3 + 3 = 1 + 3 or x - 3 + 3 = -1 + 3 x = 4 or x = 2

test/552649: -4.045÷0.005= 1 solutions Answer 360436 by jim_thompson5910(28595)   on 2012-01-04 16:06:01 (Show Source): You can put this solution on YOUR website! -4.045÷0.005=-809

test/552646: u2-v2+2v-1 1 solutions Answer 360435 by jim_thompson5910(28595)   on 2012-01-04 16:05:03 (Show Source): You can put this solution on YOUR website! u^2-v^2+2v-1 u^2-(v^2-2v+1) u^2-(v-1)^2 (u-(v-1))(u+(v-1)) (u-v+1)(u+v-1) So u^2-v^2+2v-1 = (u-v+1)(u+v-1)

Percentage-and-ratio-word-problems/552640: The lenght of a rectagle is 60 in.and its width is 48 in. Find the ratio of the lenght to the width 1 solutions Answer 360432 by jim_thompson5910(28595)   on 2012-01-04 15:45:02 (Show Source): You can put this solution on YOUR website! Length:Width = 60:48 = 5:4

Percentage-and-ratio-word-problems/552637: 1 solutions Answer 360431 by jim_thompson5910(28595)   on 2012-01-04 15:44:29 (Show Source): You can put this solution on YOUR website! Please post the full problem along with the full instructions.

Money_Word_Problems/552638: write a function rule to calculate the amount of money earned for x hours of work at $15.25 our hour 1 solutions Answer 360430 by jim_thompson5910(28595)   on 2012-01-04 15:43:15 (Show Source): You can put this solution on YOUR website! If you worked x hours at $15.25 an hour, then you will have earned 15.25x dollars So if E(x) is the amount you earned in x hours, then E(x) = 15.25x

test/552534: 1 solutions Answer 360424 by jim_thompson5910(28595)   on 2012-01-04 15:23:15 (Show Source): You can put this solution on YOUR website! Please post the full problem along with the full instructions. Thanks.

test/552547: (3√2Y)^2 1 solutions Answer 360423 by jim_thompson5910(28595)   on 2012-01-04 15:23:00 (Show Source): You can put this solution on YOUR website! (3√2y)^2 = 9*2y = 18y where y is any nonnegative number.

test/552575: Simplify |-44| 1 solutions Answer 360422 by jim_thompson5910(28595)   on 2012-01-04 15:22:22 (Show Source): You can put this solution on YOUR website! |-44| = 44

test/552580: factor x^3+3x^2 1 solutions Answer 360421 by jim_thompson5910(28595)   on 2012-01-04 15:22:09 (Show Source): You can put this solution on YOUR website! x^3+3x^2 = x^2(x+3)

test/552584: (2xy)^2 1 solutions Answer 360420 by jim_thompson5910(28595)   on 2012-01-04 15:21:53 (Show Source): You can put this solution on YOUR website! (2xy)^2 = 4x^2y^2

test/552612: 1 solutions Answer 360419 by jim_thompson5910(28595)   on 2012-01-04 15:21:25 (Show Source): You can put this solution on YOUR website! Please post the full problem along with the full instructions. Thank you.

Equations/552632: Can you you find the value of s in this problem? 14+6=3x-4 1 solutions Answer 360418 by jim_thompson5910(28595)   on 2012-01-04 15:21:05 (Show Source): You can put this solution on YOUR website! Start with the given equation. Combine like terms on the left side. Subtract from both sides. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

expressions/552627: How can I rewrite the expression using parentheses to get the given value of 28-3x3+4 with the value being 7? 1 solutions Answer 360416 by jim_thompson5910(28595)   on 2012-01-04 15:12:08 (Show Source): You can put this solution on YOUR website! 28-3x(3+4) = 28 - 3x7 = 28 - 21 = 7 So 28-3x(3+4) = 7

Linear-systems/552628: Algebra: How would you plot the second line and why would you plot it like that is there a rule? X -> 3X+2 -2 = -4 -1 = -1 0 = 2 1 = 5 2 = 8 I get that the first number line will have -2,-1,0,1,2 on it but what about the 2nd one? 1 solutions Answer 360415 by jim_thompson5910(28595)   on 2012-01-04 15:11:10 (Show Source): You can put this solution on YOUR website! When x = -2, then 3x+2 = 3(-2)+2 = -6 + 2 = -4 So in short, when x = -2, then 3x+2 = -4 This explains why -2 maps to -4 The same applies to each x value below it.

Geometric_formulas/552625: A dodecagon is a polygon with 12 sides. How many degrees is each of the interior angles in a regular dodecagon? Show or explain how you got your answer. 1 solutions Answer 360414 by jim_thompson5910(28595)   on 2012-01-04 15:01:55 (Show Source): You can put this solution on YOUR website! I = (180(n-2))/n I = (180(12-2))/(12) I = (180(10))/(12) I = 1800/(12) I = 150 So the measure of each interior angle of a 12-sided polygon is 150 degrees. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Permutations/552395: How many combinations of president and vice president can be made in a class of 21? Klreddick@AOL.com 1 solutions Answer 360268 by jim_thompson5910(28595)   on 2012-01-03 22:14:44 (Show Source): You can put this solution on YOUR website! P(n,r) = (n!)/((n-r)!) P(21,2) = (21!)/((21-2)!) P(21,2) = (21!)/(19!) P(21,2) = (21*20*19!)/(19!) P(21,2) = 21*20 P(21,2) = 420 So there are 420 different ways.

Money_Word_Problems/552412: Five-pound watermelons are on sale for $4 each .find the price per pound 1 solutions Answer 360266 by jim_thompson5910(28595)   on 2012-01-03 22:13:10 (Show Source): You can put this solution on YOUR website! $4/(5 pounds) = (4/5) dollars per pound = 0.8 dollars per pound = 80 cents per pound

Polynomials-and-rational-expressions/552399: Short answer. State the degree of the given polynomial 7x^5-4x^4+7x^2-6 1 solutions Answer 360265 by jim_thompson5910(28595)   on 2012-01-03 22:11:42 (Show Source): You can put this solution on YOUR website! The degree is equal to the largest exponent. So the degree is 5 (because the largest exponent is 5)

expressions/552425: Please help me find the product: (b+5)(6b-7) 1 solutions Answer 360263 by jim_thompson5910(28595)   on 2012-01-03 22:08:27 (Show Source): You can put this solution on YOUR website! Start with the given expression. Now let's FOIL the expression. Remember, when you FOIL an expression, you follow this procedure: Multiply the First terms:. Multiply the Outer terms:. Multiply the Inner terms:. Multiply the Last terms:. --------------------------------------------------- So we have the terms: , , , Now add every term listed above to make a single expression. Now combine like terms. So FOILs to . In other words, . If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

Subset/552403: to which subset of real numbers does the number 14 belong ? 1 solutions Answer 360262 by jim_thompson5910(28595)   on 2012-01-03 22:06:25 (Show Source): You can put this solution on YOUR website! 14 is an integer, a whole number, a natural number, and a rational number (since 14 = 14/1). So 14 belongs to the set of integers, set of whole numbers, set of natural numbers, and the set of rational numbers

Average/552410: the mean of 4 test scores is m90. what is the sum of the test scores 1 solutions Answer 360259 by jim_thompson5910(28595)   on 2012-01-03 22:03:53 (Show Source): You can put this solution on YOUR website! The sum is 4*90 = 360

Numbers_Word_Problems/552405: I am less than 10 I am an even number I am a square number 1 solutions Answer 360257 by jim_thompson5910(28595)   on 2012-01-03 22:03:15 (Show Source): You can put this solution on YOUR website! The answer is 4 since 4 is less than 10, it's an even number (since 2*2 = 4), and it's a square number (since 4 = 2^2)

Polynomials-and-rational-expressions/552407: Essay question: Could you please show all work? Find difference. (-7x^2+5x-9)-(2x^2+7x+5) 1 solutions Answer 360256 by jim_thompson5910(28595)   on 2012-01-03 22:01:29 (Show Source): You can put this solution on YOUR website! (-7x^2+5x-9)-(2x^2+7x+5) -7x^2+5x-9-2x^2-7x-5 (-7x^2-2x^2)+(5x-7x)+(-9-5) -9x^2-2x-14 So (-7x^2+5x-9)-(2x^2+7x+5) = -9x^2-2x-14 for all values of x. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim

test/552423: (8+4i)/4 1 solutions Answer 360255 by jim_thompson5910(28595)   on 2012-01-03 21:59:20 (Show Source): You can put this solution on YOUR website! (8+4i)/4 = 8/4 + 4i/4 = 2 + i

Numeric_Fractions/552411: 1 solutions Answer 360254 by jim_thompson5910(28595)   on 2012-01-03 21:58:51 (Show Source): You can put this solution on YOUR website! Please post the full problem along with the full instructions. Thank you.

Square-cubic-other-roots/552265: I have a question about simplifying square roots. I have 2√5+3√5 how do I simplify? 1 solutions Answer 360212 by jim_thompson5910(28595)   on 2012-01-03 18:28:47 (Show Source): You can put this solution on YOUR website! 2√5+3√5 √5(2+3) ... Factor out the GCF √5(5) ... Add 5√5 ... Rearrange terms. So 2√5+3√5 = 5√5

Square-cubic-other-roots/552266: I don't know how to simplify 2√5+3√5. Can you help me learn how to do that? Thank you so much, Lydia 1 solutions Answer 360211 by jim_thompson5910(28595)   on 2012-01-03 18:28:22 (Show Source): You can put this solution on YOUR website! 2√5+3√5 √5(2+3) ... Factor out the GCF √5(5) ... Add 5√5 ... Rearrange terms. So 2√5+3√5 = 5√5