Mr thomson wants to protect his garage by installing a flood barrier. he connects two barriers side by side. each barrier is 9 feet long by 2 feet high. what is the combined area of the barriers?

  36 square feet

Step-by-step explanation:

The area of one barrier is the product of the given dimensions:

  (9 ft)(2 ft) = 18 ft²

Two such barriers will have twice the area: 36 ft².

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

here is a big fat