Answer: Each pen cost $0.75
Step-by-step explanation:
If A LaDawn buys a pack of 10 gel pens and the total cost is $7.50 then you divide 7.50 by 10.
Answer:
10
Step-by-step explanation:
10 10 10 1010 10 101 10 10 1o
Answer:
See below:
Step-by-step explanation:
So, we start off with the equation: 
If we simplify, we can use the distrubutive property to simplify the equation:
Here is how it goes:
So upon simplification of that, we get here: 
Hm, somethings off, do you see that they are the same thing...
So, that means that there would be infinately many solutions.
You can plugin any number and you would get the same result!
Answer:
The functional expression can be simplified by substituting the given value in the function in place of the variable.
For example, if {eq}f(x)=x^{2} {/eq} be a function then {eq}f(2) {/eq} is determined by plugging {eq}x=2 {/eq} in the function.
Step-by-step explanation:
The given function is:
{eq}f(x) = 4x^{2} + 2x {/eq}
Let {eq}y=\frac{f(x + h) - f(x)}{h} {/eq} then we have:
{eq}\\\\\begin{align*} y & = \frac{4(x+h)^{2} + 2(x+h)-(4x^{2}+2x)}{h} \\\\ & = \frac{4(x+h)^{2} + 2(x+h)-(4x^{2}+2x)}{h} \\\\ & = \frac{4(x^{2}+2xh+h^{2}) + 2x+2h-4x^{2}-2x}{h} \\\\ & = \frac{4x^{2}+8xh+4h^{2}+ 2h-4x^{2}}{h} \\\\ & = \frac{8xh+4h^{2}+ 2h}{h} \\\\ & = \frac{h(8x+4h+2)}{h} \\\\ & = 8x+4h+2 \\\\\end{align*} {/eq}
