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Answers by Priti S.

9m^3n-36mn^3+39m^4n^2 (answer)

9m^3n-36mn^3+39m^4n^2  Find the GCF (Greatest Common Factor) : 3 m n   3 m n (3 (m^2)-12 (n^2) + 13 (m^3) n)

x^2 - 18 + 79 = 0 (answer)

If the equation is x^2 - 18x + 79 = 0   Completing the Square : move the number 79 on the other side of equal sign and use formula as indicated x^2 +bx +(b/2)^2  = c + (b/2)^2   x^2 - 18x  (-18/2)^2 = -70 + (-18/2)^2 x^2 - 18x...

Solve the given linear system. (answer)

a.  Use substitution to solve   (substitute for y and set them equal to each other) y = 5x - 3 y = 3x - 1    5x - 3 = 3x - 1     -3x       -3x ______________ 2x - 3 = - 1     +3     +3 ______________ 2x...

Add or subtract (answer)

  5√75 -4√50 + √48 = take this equation and break them into perfect square factors. 5√(25*3) -4√(25*2) + √(16*3)  Perfect square can come out see below for the rules 5*5√3 -4*5√2 + 4√3  25√3 -20√2 + 4√3   Now you can old add / subtract the front...

HELP ME OUT PLEASE SOLVE IT.............. (answer)

what you have found is correct but i think you accidentally lost your sign   -12/8 is correct which will simplify as -3/2  or -1.5 .   Next you will have to write out the slope intercept form equation   Y = MX + b   Now plug in the order pair...

HELP ME OUT PLEASE SOLVE IT (answer)

Write this equation in Slop-intercept form and it would be the best way.   Y= MX + b    Where M => Slope and b => y-intercept and (0,2) is already a y-intercept Y=-3x/5 + 2   I hope this helps!!

.8 = how many minuets (answer)

the conversion from decimal to minuets is 60. 1 hours has 60 mins.   so you take the .8 *60 = 48 mins so total 24 hrs and 48 mins.     for example 1.5 hours so take .5*60 = 30 mins   I hope this helps!

How would i solve this equation by factoring ? (answer)

For factoring start out with (  ) (  ) double brackets   factor the first term 5x^2 (which is 5x & 1x place them as indicated below) (5x     )(x    )   Now think of factor of -72  For example (8 & 9 , 12 & 6, 1 & 72,...

If Q(x)=x^2-5, find [Q(x)]^2 (answer)

rewrie it as you can see the form   (x^2-5)^2   now write them twice  (x^2-5) (x^2-5) FOIL x^4 -5x^2 -5x^2 +25 combine like terms x^4 -10x^2+25

How do I solve and graph this question --> x+3y=15 (answer)

Hello   Well you are not getting the correct equation   x+3y=15 3y=-x+15 now divide 3 to both x and 15 y= -x/3 +15/3   so y=-x/3+ 5 now pick points for x (i pick the easy one to solve for) and solve for y   x...

How to write an equation for a parabola in vertex form (answer)

The vertex form of a parabola's equation is generally expressed as :    y=a(x−h)^2+k Where (h,k) is the max or min.   1.      Look at the graph.   2.      Find the vertex of the graph (h,k) 3.      Vertex...

how do i simplify a radical expression? (answer)

Try this link and it has given all the different sample problems with explanation.  There are at least 7 problems with different scenario. http://hotmath.com/hotmath_help/topics/simplifying-radical-expressions.html I hope this helps.

x^2-6x+12=19 (answer)

x^2 - 6x + 12 = 19           1. Move the 12 over by subtracting x^2 -6x = 19 -12              2. simplify x^2 -6x = 7    2.               3. take the middle term (-6x)  work...

y/(1/xy+1) (answer)

y/(1/(xy) +1)   Get same denominator on the bottom y/ ((1+xy)/xy)  Turn the division sign into multiplication and flip the bottom y* (xy)/ (1+xy)  Simplify = xy^2/(1+xy)    

help in algebra 1 (answer)

 If questions is rewritten saying a CD cost is 3 books. and on 3 books and 2 CD you spent $18. Then we can solve the problem as below. b = price of books & c= price of cds 3b + 2c = 18  c = 3b I am using substitution to solve 3b + 2(3b)...