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Recent problems solved by 'jim_thompson5910'

jim_thompson5910 answered: 28493 problems
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Quadratic_Equations/750569: 2a^2-46a+254=0 thanks 1 solutions Answer 456701 by jim_thompson5910(28504)   on 2013-05-19 21:52:46 (Show Source): You can put this solution on YOUR website! Use the quadratic formula to solve for 'a' or or or

Square-cubic-other-roots/750509: Please help me solve this equation: x^3= 716.2 I need to find x. 1 solutions Answer 456637 by jim_thompson5910(28504)   on 2013-05-19 18:34:12 (Show Source): You can put this solution on YOUR website! x^3= 716.2 (x^3)^(1/3)= (716.2 )^(1/3) ... raise both sides to the 1/3 power x = (716.2 )^(1/3) x = 8.94701376606746 ... Use a calculator to evaluate the right side (this is approximate)

percentage/750508: A person's secondary income is $1225 and is 25% of total income and the primary income is 60% of total income, what is the total income for this person? 1 solutions Answer 456635 by jim_thompson5910(28504)   on 2013-05-19 18:30:50 (Show Source): You can put this solution on YOUR website! $1225 is 25% of total income, so 0.25x = 1225 x = 1225/0.25 x = 4900 So the total income is $4,900 (per month it sounds like it)

Polynomials-and-rational-expressions/750506: What is the answer and explained work for and list any restrictions. 8(z+1)^3/24z^2+4z-20 1 solutions Answer 456632 by jim_thompson5910(28504)   on 2013-05-19 18:27:51 (Show Source): You can put this solution on YOUR website! ======================================================= simplifies to which can be written as or Restrictions: and These restrictions are put in place to avoid dividing by zero.

Linear-equations/750504: Write the equation of the line that passes through (1,3) with a slope of 5. 1 solutions Answer 456628 by jim_thompson5910(28504)   on 2013-05-19 18:23:43 (Show Source): You can put this solution on YOUR website! So the equation of the line is

Distributive-associative-commutative-properties/750505: 4x+3y 1 solutions Answer 456627 by jim_thompson5910(28504)   on 2013-05-19 18:23:17 (Show Source): You can put this solution on YOUR website! Not sure what you want to do here. Please post the FULL instructions. Thank you.

Polynomials-and-rational-expressions/750503: Divide 36t^6-27t^5-9t^2/-9t^2 how would I do this step by step? Thank you, Cassie 1 solutions Answer 456626 by jim_thompson5910(28504)   on 2013-05-19 18:22:39 (Show Source): You can put this solution on YOUR website! ======================================================= So simplifies to

Linear-equations/750502: Write the equation of the line that passes through (6, -2) with slope of -3. 1 solutions Answer 456625 by jim_thompson5910(28504)   on 2013-05-19 18:20:08 (Show Source): You can put this solution on YOUR website! So the equation of the line is

Polynomials-and-rational-expressions/750501: (2ag squared) to the fourth power times (3a squared g cubed) squared 1 solutions Answer 456623 by jim_thompson5910(28504)   on 2013-05-19 18:19:16 (Show Source): You can put this solution on YOUR website! (2ag^2)^4*(3a^2g^3)^2 2^4*a^4*(g^2)^4*(3^2)*(a^2)^2*(g^3)^2 16*a^4*(g^2)^4*9*(a^2)^2*(g^3)^2 16*9*a^4*(g^2)^4*(a^2)^2*(g^3)^2 144*a^4*(g^2)^4*(a^2)^2*(g^3)^2 144*a^4*g^(2*4)*a^(2*2)*g^(3*2) 144*a^4*g^8*a^4*g^6 144*(a^4*a^4)*(g^8*g^6) 144*a^(4+4)*g^(8+6) 144*a^8*g^14 Final Answer: 144*a^8*g^14

Probability-and-statistics/750500: how many permutations are there of the letters in CALIFORNIA? 1 solutions Answer 456622 by jim_thompson5910(28504)   on 2013-05-19 18:16:20 (Show Source): You can put this solution on YOUR website! There are 10 letters where A shows up twice and I shows up twice So there are (10!)/(2!*2!) = 907,200 permutations

Rational-functions/750498: (42x^(5)y^(7))/(6xy^(3)) 1 solutions Answer 456621 by jim_thompson5910(28504)   on 2013-05-19 18:13:37 (Show Source): You can put this solution on YOUR website! (42x^(5)y^(7))/(6xy^(3)) (7x^(5)y^(7))/(xy^(3)) 7x^(5-1)y^(7-3) 7x^4y^4 Final Answer: 7x^4y^4

Rational-functions/750497: (9x^(3)y)/(27x^(5)y^(7)) 1 solutions Answer 456620 by jim_thompson5910(28504)   on 2013-05-19 18:10:34 (Show Source): You can put this solution on YOUR website! (9x^(3)y)/(27x^(5)y^(7)) (x^(3)y)/(3x^(5)y^(7)) (x^(3-5)y^(1-7))/(3) (x^(-2)y^(-6))/(3) 1/(3x^2y^6) Final Answer: 1/(3x^2y^6)

Inequalities/750496: -8 [2 1/2 + (3 x 6 - 2) ] 1 solutions Answer 456618 by jim_thompson5910(28504)   on 2013-05-19 18:08:37 (Show Source): You can put this solution on YOUR website! -8 [2 1/2 + (3 x 6 - 2) ] -8 [5/2 + (3 x 6 - 2) ] -8 [5/2 + (18 - 2) ] -8 [5/2 + (16) ] -8 [5/2 + 16 ] -8 [5/2 + 32/2 ] -8 [37/2 ] -296/2 -148 Final Answer: -148

Equations/750495: Question Removed (inappropriate content) 1 solutions Answer 456617 by jim_thompson5910(28504)   on 2013-05-19 18:06:20 (Show Source): You can put this solution on YOUR website! Question Removed (inappropriate content)

Expressions-with-variables/750494: what does x and y equal using substituition in both equations 2x+y=0; x=3y=-56 1 solutions Answer 456615 by jim_thompson5910(28504)   on 2013-05-19 18:05:42 (Show Source): You can put this solution on YOUR website! The second equation has too many equal signs, please fix this, thank you

Parallelograms/750492: Parallelogram ABCD has obtuse angles that are twice as big as the acute angles. What is the measurement of each acute angle? 1 solutions Answer 456614 by jim_thompson5910(28504)   on 2013-05-19 18:05:02 (Show Source): You can put this solution on YOUR website! Let x = measure of acute angle, so 2x is the obtuse angle (since it's twice as big). Adjacent angles in a parallelogram add to 180 degrees, so we can say x + 2x = 180 ... now solve for x 3x = 180 x = 180/3 x = 60 2x = 2*60 x = 120 So the obtuse angles are 120 degrees and the acute angles are 60 degrees

Money_Word_Problems/750487: I want to get a lap top and 3 years ago I put $80:00 dollars in the bank how much interests would I have earned 1 solutions Answer 456608 by jim_thompson5910(28504)   on 2013-05-19 17:47:59 (Show Source): You can put this solution on YOUR website! It will depend on the interest rate and how the interest is compounded. So some information is missing and the question cannot be answered until this information is given.

Geometry_Word_Problems/750486: f(x) = x^2 find f(0), f(2), and f(-2) 1 solutions Answer 456605 by jim_thompson5910(28504)   on 2013-05-19 17:42:56 (Show Source): You can put this solution on YOUR website! f(x) = x^2 f(0) = 0^2 ... replace all copies of x with 0 f(0) = 0 ------------------------------------------------------- f(x) = x^2 f(2) = 2^2 f(2) = 4 ------------------------------------------------------- f(x) = x^2 f(-2) = (-2)^2 f(-2) = 4

Geometry_Word_Problems/750485: f(x) = x^2 1 solutions Answer 456604 by jim_thompson5910(28504)   on 2013-05-19 17:40:21 (Show Source): You can put this solution on YOUR website! If you want to graph, then you would get this

Equations/750447: 5(y-2)-2=2(y+10)-5 1 solutions Answer 456603 by jim_thompson5910(28504)   on 2013-05-19 17:38:15 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Combine like terms on the left side. Combine like terms on the right side. Add to both sides. Subtract from both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is

Problems-with-consecutive-odd-even-integers/750454: (7)/(14x) 1 solutions Answer 456602 by jim_thompson5910(28504)   on 2013-05-19 17:37:42 (Show Source): You can put this solution on YOUR website! (7)/(14x) = 1/(2x)

Equations/750446: -50=-2(a+3) 1 solutions Answer 456601 by jim_thompson5910(28504)   on 2013-05-19 17:37:13 (Show Source): You can put this solution on YOUR website! -50=-2(a+3) -50=-2a-6 0=-2a-6+50 2a=-6+50 2a=44 a=(44)/(2) a=22

Rational-functions/750457: (x-7)/(x^(2)-49) 1 solutions Answer 456600 by jim_thompson5910(28504)   on 2013-05-19 17:36:37 (Show Source): You can put this solution on YOUR website! (x-7)/(x^2-49) (x-7)/((x-7)(x+7)) 1/(x+7) Answer: 1/(x+7)

Linear-equations/750430: graf y=x-2 1 solutions Answer 456599 by jim_thompson5910(28504)   on 2013-05-19 17:35:55 (Show Source): You can put this solution on YOUR website! Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis So we have one point Now since the slope is comprised of the "rise" over the "run" this means Also, because the slope is , this means: which shows us that the rise is 1 and the run is 1. This means that to go from point to point, we can go up 1 and over 1 So starting at , go up 1 unit and to the right 1 unit to get to the next point Now draw a line through these points to graph So this is the graph of through the points and

Equations/750456: x/5-x=4 1 solutions Answer 456598 by jim_thompson5910(28504)   on 2013-05-19 17:34:39 (Show Source): You can put this solution on YOUR website! x/(5-x)=4 x=4(5-x) x=20-4x x+4x=20 5x=20 x=20/5 x=4

Exponents/750483: multiply this problem (2a+2)^3= 1 solutions Answer 456596 by jim_thompson5910(28504)   on 2013-05-19 17:33:37 (Show Source): You can put this solution on YOUR website! (2a+2)^3 = (2a+2)(2a+2)(2a+2) (2a+2)^3 = (2a+2)(4a^2 + 8a + 4) (2a+2)^3 = 2a(4a^2 + 8a + 4) + 2(4a^2 + 8a + 4) (2a+2)^3 = 8a^3 + 16a^2 + 8a + 8a^2 + 16a + 8 (2a+2)^3 = 8a^3 + 24a^2 + 24a + 8

Sequences-and-series/750464: Please help with me Find the fractions equal to the given decimals 1. 0.55555 1 solutions Answer 456594 by jim_thompson5910(28504)   on 2013-05-19 17:31:57 (Show Source): You can put this solution on YOUR website! x = 0.55555 10x = 5.5555 10x - x = 5.5555 - 0.55555 9x = 5 x = 5/9 Answer: 5/9 = 0.555555....

expressions/750478: 4/3-6=-8 1 solutions Answer 456593 by jim_thompson5910(28504)   on 2013-05-19 17:30:37 (Show Source): You can put this solution on YOUR website! 4/3-6=-8 4/(-3)=-8 -1.333=-8 ... FALSE ------------------------------------------------------- 4/3-6=-8 1.333-6=-8 -4.667=-8 ... FALSE ------------------------------------------------------- So 4/3-6=-8 is never true My guess is that a variable is missing.

Average/748210: 94, 68, 72, 88, 96, 88, 89, 97 whats the median 1 solutions Answer 455368 by jim_thompson5910(28504)   on 2013-05-13 13:06:04 (Show Source): You can put this solution on YOUR website! Original Data Set: 94, 68, 72, 88, 96, 88, 89, 97 Sorted Data Set: 68, 72, 88, 88, 89, 94, 96, 97 Start with the list of numbers shown below 68, 72, 88, 88, 89, 94, 96, 97 There are 8 values. This is an even number of values. So the median will be in between the two middle-most numbers (the median may or may not be in the list -- there are no guarantees). More specifically, the median will be in between the elements at slot numbers 4 and 5 (divide 8 in half to get 4). This means you can count 4 places over to get to the value of 88. The next number over is 89 The median will be the average of the two values 88 and 89. So average them to get (88 + 89)/2 = (177)/2 = 88.5 Or you can do it this way Step 1) Start with the list of numbers shown below 68, 72, 88, 88, 89, 94, 96, 97 --------------------------------------------------------------------- Step 2) Erase the outer pair of numbers (68 on the very left and 97 on the very right) to get the new list: 72, 88, 88, 89, 94, 96 Repeat this until the list reduces to exactly two values. --------------------------------------------------------------------- Step 3) Erase the outer pair of numbers (72 on the very left and 96 on the very right) to get the new list: 88, 88, 89, 94 --------------------------------------------------------------------- Step 4) Erase the outer pair of numbers (88 on the very left and 94 on the very right) to get the new list: 88, 89 --------------------------------------------------------------------- We're left with exactly two numbers: 88 and 89. So we are done erasing values. Average the two values to get (88 + 89)/2 = (177)/2 = 88.5 So the median is 88.5

Trigonometry-basics/748174: If sin θ=square root of 3/2, which could not be the value of θ? 60 degrees 120 degrees 240 degrees 420 degrees 1 solutions Answer 455355 by jim_thompson5910(28504)   on 2013-05-13 12:02:16 (Show Source): You can put this solution on YOUR website! The angle 240 degrees is in quadrant III where sine is negative. So sin(240) can't be sqrt(3)/2 since this is positive. So the answer must be choice C

Equations/747344: exact value of cos(pi/6) 1 solutions Answer 454838 by jim_thompson5910(28504)   on 2013-05-10 14:45:25 (Show Source): You can put this solution on YOUR website! Use this table here http://www.trigonometry-help.net/img/trig-tables_clip_image018.gif to get the answer to be