# Math Help - Help Help!!!

1. ## Help Help!!!

Here some problems i need help with:

1)
Write the numerical coefficient of -7c^9d^2

2)
Write the probability of getting a number over 4 of two successive of single die

3)
Write equation that equivalent to 16-x=0

4)
The numerical coefficient of the product of (x-8)(x-5) equals= ?
5)
write the slope-intercept form of 3x=16+4y.

6)
The slope of line parallel to -x+y=12 equals____

2. Originally Posted by mathelp
Here some problems i need help with:

1)
Write the numerical coefficient of -7c^9d^2
In $-7c^9d^2$ the coefficient is number in front of variable(s) thus it is -7.

Originally Posted by mathelp
2)
Write the probability of getting a number over 4 of two successive of single die
That means either 5 or 6 and there are 6 possibilities thus,
the probability is $2/6=1/3$

Originally Posted by mathelp
3)
Write equation that equivalent to 16-x=0
Not sure, what you want. Add $x$ to both sides to get,
$16=x$

Originally Posted by mathelp
4)
The numerical coefficient of the product of (x-8)(x-5) equals= ?
Not sure what you want. You need to use F.O.I.L on $(x-8)(x-5)$ which gives $x^2-5x-8x+40$ collect terms to get, $x^2-13x+40$

Originally Posted by mathelp
5)
write the slope-intercept form of 3x=16+4y.
Slope-intercept form means basically solve for $y$. First subtract 16 from both sides to get, $3x-16=4y$ now divide by 4 both sides to get,
$y=\frac{3}{4}x-4$

Originally Posted by mathelp
6)
The slope of line parallel to -x+y=12 equals____
First write it in slope-intercept form. Which is $y=x+12$. Any line parallel to this one has the same slope. The slope in the coffecient of the $x$ which over here is 1 because $1x=x$.