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Signed-numbers/358959: are S and T disjoint 1 solutions Answer 256123 by Fombitz(13828)   on 2010-10-20 00:16:59 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 358961 in Signed-numbers:

Signed-numbers/358960: are S and T disjoint? 1 solutions Answer 256122 by Fombitz(13828)   on 2010-10-20 00:16:48 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 358961 in Signed-numbers:

Signed-numbers/358961: S equals {o,3,6,9} T equals {1,3,5,7,9} are S and T disjoint 1 solutions Answer 256121 by Fombitz(13828)   on 2010-10-20 00:16:24 (Show Source): You can put this solution on YOUR website! and are disjoint if they have no elements in common. Since and both share element {3,9} they are not disjoint.

Graphs/358912: How do I graph y=-1/5x-2 1 solutions Answer 256120 by Fombitz(13828)   on 2010-10-20 00:14:40 (Show Source): You can put this solution on YOUR website! Graph the y-intercept (0,-2). Then use the slope to find another point, starting at the intercept. Slope= So a change in x of 5 will give a change in y of -1. Starting from the y-intercept, X: Y: (,) is another point on the line.

Rational-functions/358646: y < x 1 solutions Answer 255974 by Fombitz(13828)   on 2010-10-19 16:58:28 (Show Source): You can put this solution on YOUR website! Plot . . . . . . Now choose a point not on the line, (,). Test the inequality. False, shade the region that doesn't include (,) . . . Solved by pluggable solver: Plot Any Inequality Graphing function :

Equations/358648: I am trying to help my son with his pre-algebra homework, don't remember how to do it. Sample question 14A-93=49-57A 1 solutions Answer 255971 by Fombitz(13828)   on 2010-10-19 16:55:26 (Show Source): You can put this solution on YOUR website! A's on the left, every thing else on the right. Here it is step by step. . . . . . . . . . . . . . . . . . .

Exponents-negative-and-fractional/358645: how do u put in the expontent 54 into a calculator?? the question is 1000(1+.09/12)^(54) 1 solutions Answer 255969 by Fombitz(13828)   on 2010-10-19 16:52:31 (Show Source): You can put this solution on YOUR website! You should have a y^x button somewhere. . . . I typed your line into Google and got the answer. You don't even need a calculator any more.

Polynomials-and-rational-expressions/358639: please help me i am lost Solve 2/w = 3/w - 1/11 1 solutions Answer 255966 by Fombitz(13828)   on 2010-10-19 16:44:35 (Show Source): You can put this solution on YOUR website! Multiply both sides by Now solve for .

Matrices-and-determiminant/358355: THE NAME OF THE ASSIGNMENT IS OPERATIONS WITH MATRICES find C+D if C=[14,8,-1] and D=[-10,8,15] find A-B if A=[2,-7 and B=[-3,2 1,4] -6,0] if A=[2,5 and B=[1,2 find 4A-5B -3,-6] -4,9] 1 solutions Answer 255965 by Fombitz(13828)   on 2010-10-19 16:43:24 (Show Source): You can put this solution on YOUR website! [C]= [D]= . . [C+D]= [C+D]= . . . [A]= [B]= . . [A-B]= [A-B]= [A-B]= . . . [A]= 4[A]=[4A]= [B]= 5[B]=[5B]= . . [4A]-[5B]= [4A]-[5B]=

Polynomials-and-rational-expressions/358634: Evaluate the polynomial for x=5 please simplify Please help me 1 solutions Answer 255962 by Fombitz(13828)   on 2010-10-19 16:33:48 (Show Source): You can put this solution on YOUR website! Your turn, finish that calculation to get the final answer.

Numbers_Word_Problems/358629: Water flows through a pipe at 20,000 cm cubed per second. How many minutes does it take to fill a rectangular tank 3m x 4m x 5m ? 1 solutions Answer 255961 by Fombitz(13828)   on 2010-10-19 16:32:47 (Show Source): You can put this solution on YOUR website! First find the volume of the tank. . . . In terms of , . . . Rate*Time=Output . . . seconds minutes

Polynomials-and-rational-expressions/358630: Factor. 5b^7-1080b^4 1 solutions Answer 255956 by Fombitz(13828)   on 2010-10-19 16:28:33 (Show Source): You can put this solution on YOUR website!

Age_Word_Problems/358623: Equal amounts are invested in two accounts paying 4% and 5% interest annually. If one year's combined interest income is $324, how much is invested in each account? 1 solutions Answer 255954 by Fombitz(13828)   on 2010-10-19 16:21:59 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 358625 in Age_Word_Problems:

Age_Word_Problems/358625: Equal amounts are invested in two accounts paying 4% and 5% interest annually. If one year's combined interest income is $324, how much is invested in each account? 1 solutions Answer 255953 by Fombitz(13828)   on 2010-10-19 16:21:37 (Show Source): You can put this solution on YOUR website! $3600 is invested in each account.

Linear-equations/358627: I am having problems coming up with solutions to plot the intercept points... 1/2x - 1/5y = 1 1 solutions Answer 255951 by Fombitz(13828)   on 2010-10-19 16:20:24 (Show Source): You can put this solution on YOUR website! . . . To find the x-intercept, set and solve for . Now solve for . . . To find the y-intercept, set and solve for . Now solve for

Linear-equations/358624: Have to graph the equation by plotting intercepts. I understand what intercepts are, but cannot solve this equation. Am I correct that all intercept points have a 0 in the ordered pair? Please help so lost on this one! y + 1/2x = 3 1 solutions Answer 255950 by Fombitz(13828)   on 2010-10-19 16:19:05 (Show Source): You can put this solution on YOUR website! To find the x-intercept, set and solve for . (,) . . . To find the y-intercept, set and solve for . (,) . . . Plot the points and connect them with a line that goes through both points. . . .

Systems-of-equations/358519: find the product (1/2x + 4)(1/2x - 4)(4x - 8) 1 solutions Answer 255948 by Fombitz(13828)   on 2010-10-19 16:15:45 (Show Source): You can put this solution on YOUR website!

Radicals/358618: please help me i am lost Use rational exponents to write x^1/7 * y^1/5 * z^1/4 as a single radical expression 1 solutions Answer 255945 by Fombitz(13828)   on 2010-10-19 16:12:17 (Show Source): You can put this solution on YOUR website! Find a common denominator, . . .

test/358606: 2x+9. x+3 ------- +. -------- X^2+6x+8 X^2+2x-8 1 solutions Answer 255944 by Fombitz(13828)   on 2010-10-19 16:09:45 (Show Source): You can put this solution on YOUR website! Find a common denominator. LCD=

Polynomials-and-rational-expressions/358614: please help me Factor completely 1 solutions Answer 255941 by Fombitz(13828)   on 2010-10-19 16:05:06 (Show Source): You can put this solution on YOUR website!

Travel_Word_Problems/358590: A family takes a car trip. They travel for an hour at 90 km/h and then for two hours at 40km/h Find their average speed during the trip 1 solutions Answer 255938 by Fombitz(13828)   on 2010-10-19 16:03:27 (Show Source): You can put this solution on YOUR website! Rate*Time=Distance km km Average speed is total distance divided by total time. km/hr or approximately, km/hr

Exponents/358607: Multiply and simplify 64b^2 / 2b^2-4b+2 *2b-2 / 8b) "type exponential notation with positive exponents" very confused please help 1 solutions Answer 255936 by Fombitz(13828)   on 2010-10-19 16:01:27 (Show Source): You can put this solution on YOUR website! I'm confused too. Please use parentheses. Here's my guess.

Average/358610: Your average (arithmetic mean) score on four exams is 82. If your professor drops the lowest exam score then your average will be 86. What was your lowest score? 1 solutions Answer 255934 by Fombitz(13828)   on 2010-10-19 15:57:18 (Show Source): You can put this solution on YOUR website! Let the score be A,B,C,D in order. . . . .

test/358609: Change a decimal to a fraction .23 1 solutions Answer 255931 by Fombitz(13828)   on 2010-10-19 15:53:29 (Show Source): You can put this solution on YOUR website!

Square-cubic-other-roots/358593: 7c^2-5/c-1 1 solutions Answer 255930 by Fombitz(13828)   on 2010-10-19 15:52:53 (Show Source): You can put this solution on YOUR website! 7c + 7 __________________________ c - 1 | 7c^2 + 0c - 5 - (7c^2 - 7c) ---------------- 7c - 5 - (7c - 7) -------------- 2 . . Use polynomial long division, . .

Probability-and-statistics/358602: Suppose the amount of time it takes a popcorn kernel to pop is normally distributed with a mean of 150 seconds and a standard deviation of 15 seconds. If a popcorn kernal is randomly selected, what is the probability that it takes between 130 seconds to 170 seconds for the kernal to pop? 1 solutions Answer 255928 by Fombitz(13828)   on 2010-10-19 15:48:52 (Show Source): You can put this solution on YOUR website! Use the z-score. Then find and . . . .

Radicals/358580: rationalize each denominator 1 solutions Answer 255925 by Fombitz(13828)   on 2010-10-19 15:45:08 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 358577 in Radicals:

Radicals/358577: 1 solutions Answer 255923 by Fombitz(13828)   on 2010-10-19 15:44:41 (Show Source): You can put this solution on YOUR website!

Rational-functions/358591: i need help solving 4[p(x)-2[h(3)] if p(x)=2x-4 & h(x)=x^2+5 and please tell me how you solved it! 1 solutions Answer 255920 by Fombitz(13828)   on 2010-10-19 15:39:30 (Show Source): You can put this solution on YOUR website! . . . . . .

Linear-equations/358592: Different ways of getting 3x+2y=10? I got x=2 y=2 for example. 1 solutions Answer 255916 by Fombitz(13828)   on 2010-10-19 15:37:04 (Show Source): You can put this solution on YOUR website! There's an infinite number of (x,y) solutions. Pick any , stick it in the formula to generate the to solve the equation. (0,5) (2,2) (-2,8) . . .

Linear_Algebra/358553: Find the equation of the parabola passing through the given points (1,3)(2,3)(3,5). Show the system of equations containing the 3 points and then solve for the constants, a,b,and c. Then, show the standard form equation of the parabola. 1 solutions Answer 255915 by Fombitz(13828)   on 2010-10-19 15:34:02 (Show Source): You can put this solution on YOUR website! Since (,) and (,) share a y-value, they are on opposite sides of the vertex. The coordinate of the vertex is Use the vertex form, Use your points to solve for and . 1. . . . 2. Subtract eq. 1 from eq. 2, Then use either equation to solve for . . . . . .