If a substance is transported across a cell membrane from an area of low concentration to an area of high concentration, you know that it is a type of active transport.

it is a type of passive transport.

it could be active or passive transport.

x = 6  and y = 6

Step-by-step explanation:

Remember:  In a 30°- 60°- 90° triangle the hypotenuse = short leg · 2

                     and the long leg = short leg · .

In the given right triangle you have the following opposite the right angle is the hypotenuse = 12, the long leg is opposite the 60° angle = y, and the short leg is opposite the 30° angle = x

1. Find the short leg "x"  

    Using hypotenuse = short leg · 2

                         12 = x · 2

                          12/2 = x

                               6 = x  the short leg is 6

2. Find the long leg  

 Using    long leg = short leg ·

                      y = 6