10/27/12

solve proportion
-4/9=3/n  __/(decimal)
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10/26/12

what symbol u can put instead of the questions mark, with the SAME symbol?......(5?5+5?5=11)SAME SYMBOL!!!
this is a pre-algebra math problem, but i have no idea how to do it.... so how can u get 11, with 4 fives, same symbol sign instead of the ?marks, and there's a + sign in between.... 5?5+5?=11
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10/26/12

chiara has 3 balls more than francesca. marco has 7balls more than chiara. if there are 46 balls how many each of them?
chiara has 3 balls more than francesca. marco has 7balls more than chiara. if there are 46 balls how many each of them?
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10/26/12

Y=XSIN(PI X)Y'=SIN(PI X)+ PI XCOS(PI X)I don't know who to solve for the critical numbers because I don't know how to factor this.Thanks!
With other problems such as Y= 2X^3 + 3X^2, I can easily factor the deriviate: Y'= 6X^2 + 6X and set it equal to zero.  With the trig derivative, I don't know how to finish the problem.
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10/25/12

SAT Prep Math Queston!! PLEASE HELP
A regulation for riding a certain amusement park ride requires that a child be between 30 inches and 50 inches tall. Which of the following inequalities can be used to determine whether or not a... more
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10/23/12

7/2 + x = 1/4
find a common denominator and multiply both sides by it to get rid of the fraction
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10/23/12

multiplies of 2 and 18
lo.hghhgbbbbbbbbbbbbbbbbbbbb
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10/22/12

the coordinates of the vertex of the parabola 2(y-1)^2=x+2 are
this is about conics and how to find the vertex of parabola equations
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10/22/12

what are multiples of numbers 3 and 4
the first ten multiples other tahn zero of 3 and 4
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10/22/12

graph y=-x+6 in coordinate plane
graph y=-x+6 in a coordinate plane  
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10/21/12

she is doing factoring polynomials
1/4x^2-9 the 1/4 is a fraction she is in algebra 1 9th grade
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10/21/12

graph in a rectangular coordinate x=3.5
ngle
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10/21/12

how to solve this equation? x/3+3=4+x/6
i need help on this math equation pleaseeeeeeeeeeee...
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10/21/12

what is the answer
5 2/3+5 1/3+3 1/2
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10/21/12

Lauren’s age is 2/3 of kylie’s age. Twelve years ago, Lauren’s age was half of Kylie’s age. How old is Lauren now?
Lauren’s age is 2/3 of kylie’s age. Twelve years ago, Lauren’s age was half of Kylie’s age. How old is Lauren now?
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10/18/12

(2sin18)(cos18)
Simplify by using the double angle formula.
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10/15/12

Leah is 6 years older than Sue. John is 5 years older than Leah. Total combined age is 41. How old is Sue?
What is the algebraic equation
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09/26/12

I am trying to build and solve and equation from a word problem.
Brian is 48 and Meagan is 24.  At some point during their lives Brian will be three times older than Meagan.  Write an equation which models how old in years both Brian and meagan will be when... more
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09/24/12

tickets $7 in advance, $9 at the door. 684 tickets were sold with a total $5740. how many tickets were sold at the door?
I need help with this problem
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