A man wants to zipline from the top of a 20 meter building to an island 50 meters away. How long does the zipline wire need to be?

About 54 meters or 53.8 meters

Step-by-step explanation:

Pythagorean theorem a^2+b^2=c^2

20^2+50^2=53.8^2

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.