Acar dealer advertised a big sale by stretching a stringof banners from the top of the building to the edge of driveway. if the building is 27 m high and driveway is 32 m from the buildind, how long is the string of banners?

41.86 meters.

Step-by-step explanation:

By the Pythagorean theorem, we know that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of the other two sides of the right-angled triangle.

Now, let's consider 27 meters as the height of a triangle and 32 meters as the base. According to the Pythagorean theorem,

27^2+ 32^2= (length of the string banners)^2= 1753

So, the length of the string banner is 41.86 meters.

Let X be the variable used to represent the expression of the total number of books that Mario has read.
We used 4X to represent "four times the number of books". Then we add -2 to interpret the words "for two less than".
Therefore, we have an expression of 4X-2 for the total number of books that Mario has read.