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Recent problems solved by 'MathLover1'

MathLover1 answered: 6611 problems
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Equations/639350: Hi, I need help with this question: What is the domain of the function f(u)=[(square root of)(u-2)]-[(square root of)(6-u) Please help! my homework is due wednesday at 12:00 pm 1 solutions Answer 402704 by MathLover1(6613)   on 2012-08-20 22:45:34 (Show Source): You can put this solution on YOUR website! domain will be all real numbers except values of that make and equal to and they are: .....->... .....->... and

Divisibility_and_Prime_Numbers/639321: 840.9744/12.96 Need the process to help my son 1 solutions Answer 402694 by MathLover1(6613)   on 2012-08-20 21:26:07 (Show Source): You can put this solution on YOUR website! ...here, denominator is an decimal number and we need a whole number; so, since denominator has two decimal places we will multiply it by to get whole number....but, we need to multiply by nominator too ...as you can see, denominator is whole number () and decimal point in nominator moved two places to the right now, we can do division

test/639287: What is the value of f(x) given the value of x x=4 f(x)x^4-x^2-9x-16 1 solutions Answer 402691 by MathLover1(6613)   on 2012-08-20 21:15:40 (Show Source): You can put this solution on YOUR website! .....if , we will have:

Functions/639276: What's the answer to -0.38 - (-1.06) ? 1 solutions Answer 402689 by MathLover1(6613)   on 2012-08-20 21:05:07 (Show Source): You can put this solution on YOUR website!

test/639291: Find the value of k if the given equation is true for x=5 x^4-x-^3-8x^2-kx-k=0 1 solutions Answer 402688 by MathLover1(6613)   on 2012-08-20 21:02:31 (Show Source): You can put this solution on YOUR website! Find the value of if the given equation is true for ......plug in

test/639302: A = 1/2bh, for h 1 solutions Answer 402682 by MathLover1(6613)   on 2012-08-20 20:50:30 (Show Source): You can put this solution on YOUR website!

Polynomials-and-rational-expressions/639308: how do you factor the following? 4x^2 -9y^2 1 solutions Answer 402678 by MathLover1(6613)   on 2012-08-20 20:44:29 (Show Source): You can put this solution on YOUR website!

Linear_Algebra/639278: ((x/(1-x))+((1+x)/x))/(((1-x)/x)+(x/(1+x)) 1 solutions Answer 402677 by MathLover1(6613)   on 2012-08-20 20:42:40 (Show Source): You can put this solution on YOUR website!

Linear-systems/639187: I don't understand the systems 8x+4y=6 4x=3-y I got the answers x=6/8 and y=0 im not sure if I did it correctly. 1 solutions Answer 402623 by MathLover1(6613)   on 2012-08-20 17:19:39 (Show Source): You can put this solution on YOUR website! ...this is a standard form ....->..a standard form is you got the answers and which is correct..you can reduce to if you divide both numerator and denominator by Solved by pluggable solver: Solve the System of Equations by Graphing Start with the given system of equations: In order to graph these equations, we need to solve for y for each equation. So let's solve for y on the first equation Start with the given equation Subtract from both sides Rearrange the equation Divide both sides by Break up the fraction Reduce Now lets graph (note: if you need help with graphing, check out this solver) Graph of So let's solve for y on the second equation Start with the given equation Subtract from both sides Rearrange the equation Divide both sides by Break up the fraction Reduce Now lets add the graph of to our first plot to get: Graph of (red) and (green) From the graph, we can see that the two lines intersect at the point (,) (note: you might have to adjust the window to see the intersection)

Rational-functions/639157: Write the equation of the line that passes through (–1, 5) with a slope of 2 in standard form. 1 solutions Answer 402619 by MathLover1(6613)   on 2012-08-20 17:09:21 (Show Source): You can put this solution on YOUR website! Solved by pluggable solver: FIND a line by slope and one point What we know about the line whose equation we are trying to find out: it goes through point (-1, 5) it has a slope of 2 First, let's draw a diagram of the coordinate system with point (-1, 5) plotted with a little blue dot: Write this down: the formula for the equation, given point and intercept a, is (see a paragraph below explaining why this formula is correct) Given that a=2, and , we have the equation of the line: Explanation: Why did we use formula ? Explanation goes here. We are trying to find equation y=ax+b. The value of slope (a) is already given to us. We need to find b. If a point (, ) lies on the line, it means that it satisfies the equation of the line. So, our equation holds for (, ): Here, we know a, , and , and do not know b. It is easy to find out: . So, then, the equation of the line is: . Here's the graph:

Polynomials-and-rational-expressions/639164: How "simple" do we need to be when asked to "simplify"? My equation reads: All I have done is simplify the denominators via foil: . What else can I do with this? Did I even start the right way? Thanks :) 1 solutions Answer 402601 by MathLover1(6613)   on 2012-08-20 16:12:24 (Show Source): You can put this solution on YOUR website! to finish, it can be reduced to a common denominator

Graphs/639144: Graph y=(x^2)+6x+1 Then state the domain and range Please show work so I can understand :) 1 solutions Answer 402592 by MathLover1(6613)   on 2012-08-20 15:22:43 (Show Source): You can put this solution on YOUR website! first, take several values for and calculate x|y 0|1 1|8 -1|-4 -2|-7 -3|-8.........plot these points and draw a graph D: (, ) R: (, )

Travel_Word_Problems/639101: rate = 40 miles per hour, time = 3 1/2 hours find the distance?! 1 solutions Answer 402549 by MathLover1(6613)   on 2012-08-20 12:20:52 (Show Source): You can put this solution on YOUR website!

Rational-functions/639085: simplify. 2x^2 - 18 / 18 - 6x = ?/-3 1 solutions Answer 402541 by MathLover1(6613)   on 2012-08-20 10:56:47 (Show Source): You can put this solution on YOUR website! = ?/-3

Polynomials-and-rational-expressions/639067: (3n^2 + 2n^2 + 18n) / 6n^2 I don't understand how that would work becuase it'd be fractions...please help! 1 solutions Answer 402535 by MathLover1(6613)   on 2012-08-20 09:23:45 (Show Source): You can put this solution on YOUR website! now, you can set expression equal to zero and calculate

Sequences-and-series/639064: What comes next in the sequence: 1, 3, 4, 7, 11 ...... 1 solutions Answer 402534 by MathLover1(6613)   on 2012-08-20 09:10:13 (Show Source): You can put this solution on YOUR website! in the sequence: 1, 3, 4, 7, 11 ... every third term is a sum of previous two: so, the next few numbers in the sequence 1, 3, 4, 7, 11 ... are , , and

Rational-functions/638943: Please help me in this. 1 solutions Answer 402488 by MathLover1(6613)   on 2012-08-19 21:39:43 (Show Source): You can put this solution on YOUR website! ...simplify

Pythagorean-theorem/638929: What types of problems can the pythagorean theorem solve and what types can it not solve. 1 solutions Answer 402486 by MathLover1(6613)   on 2012-08-19 21:37:23 (Show Source): You can put this solution on YOUR website! We can use the Pythagorean Theorem to solve problems that involve . The theorem is a simple formula which shows the relationship between the sides of any right triangle. Once you know the equation is true, then you can use it to solve all kinds of problems.

Angles/638933: what is the measure of an angle that is supplementary to 102 degrees 1 solutions Answer 402477 by MathLover1(6613)   on 2012-08-19 20:55:35 (Show Source): You can put this solution on YOUR website! Angles are if they add to °. ° given: ° find °

test/638916: Factorize the triomial 6x^2 + 11x +4 1 solutions Answer 402476 by MathLover1(6613)   on 2012-08-19 20:50:58 (Show Source): You can put this solution on YOUR website! .....replace with ....group

test/638900: Which Binomial Is A Factor Of 15t(squared)-t-6? 1 solutions Answer 402460 by MathLover1(6613)   on 2012-08-19 20:19:37 (Show Source): You can put this solution on YOUR website! ......replace with .....group

Reduction-of-unit-multipliers/638883: Find the valuse of each expression if x=10 and y=3 5y to the third power(cubed) + 20/x ( 20 over x ) = ? 1 solutions Answer 402455 by MathLover1(6613)   on 2012-08-19 19:59:00 (Show Source): You can put this solution on YOUR website! if and , then = = = =

Linear-systems/638846: how would i solve for 5/4 greater than or equal to -1/8 1 solutions Answer 402423 by MathLover1(6613)   on 2012-08-19 17:47:08 (Show Source): You can put this solution on YOUR website! or

expressions/638833: Multiply the expresstions, and simplify (x^-2*y^3)*(2x^4*y^-2) a) 2x^2y b) 2x^-6y-5 c) 2(xy)^3 d) x^2y 1 solutions Answer 402417 by MathLover1(6613)   on 2012-08-19 16:43:00 (Show Source): You can put this solution on YOUR website!

Functions/638732: please help me solve this equation this is factor completely 1 solutions Answer 402393 by MathLover1(6613)   on 2012-08-19 13:38:52 (Show Source): You can put this solution on YOUR website!

Functions/638755: please help me solve this equation this is factor completely 1 solutions Answer 402385 by MathLover1(6613)   on 2012-08-19 12:44:07 (Show Source): You can put this solution on YOUR website!

Functions/638756: please help me solve this equation this is factor completely 1 solutions Answer 402383 by MathLover1(6613)   on 2012-08-19 12:42:34 (Show Source): You can put this solution on YOUR website!

Functions/638758: please help me solve this equation this is factor completely 1 solutions Answer 402382 by MathLover1(6613)   on 2012-08-19 12:40:40 (Show Source): You can put this solution on YOUR website!

Functions/638736: please help me solve this equation this is factor completely 1 solutions Answer 402373 by MathLover1(6613)   on 2012-08-19 11:57:53 (Show Source): You can put this solution on YOUR website!

Functions/638730: please help me solve this equation this is factor each trinomial completely 1 solutions Answer 402372 by MathLover1(6613)   on 2012-08-19 11:55:22 (Show Source): You can put this solution on YOUR website! ........each term has common , factor it out

Graphs/638719: Graph 2y+x=4 1 solutions Answer 402370 by MathLover1(6613)   on 2012-08-19 11:46:58 (Show Source): You can put this solution on YOUR website! Graph .........->.......->... here you have a linear function, and a graph will be a line; so, you need to find two points and plot them and draw the line through them if ...-> first point is (,) if ...->....->....-> second point is (,)