Well the formula for the perimeter of a rectangle is 2w+2l
w=width
l=length
So it is 2(665)+2(421)=2172
A vertical asymptote simply means that the function is undefined at a certain point. We are given that it occurs at x=25. Notice that x is in the denominator and if the denominator equals 0, the entire function is undefined. <em>a</em> and <em>k</em> are simply constants, and so they can take on any value. This is one of infinite solutions to this question:

Notice that when you plug in x=25, the denominator is 0 and the function is undefined making it a vertical asymptote.
Hope I could help!
Answer:
sorry little busy to calculate
Step-by-step explanation:
+5x+2y+z=15
3x +4y_z=19,,,choose which term u wanna eliminate first so u will be able to get your answer there
Answer:
160cm^2
Step-by-step explanation:
So the surface area is basicly the sum of all the areas of the rectangles in this prism.
So the formula can be written as
.
The w stands for width, the h stands for height, and the l stands for length.
5cm is the width, 10 cm is the length, and 2 cm is the height.
So inserting all those values for the variabls the formula now looks like this.
.
So 5*10 is <u><em>50</em></u>
2*10 is <u><em>20</em></u>
2*5 is <em><u>10</u></em>
So adding all that up we get 80.
Then multiplyong that by 2 we get 160cm^2.