If abc ~ dec, solve for x. the image is not drawn to scale.
a.
x = 2
b.
x = 3
c.
x = 4
d.
x = 13

A.    x = 2

Step-by-step explanation:

In the given picture we have

Since, we know that the corresponding sides in similar triangles are in proportion.

Therefore, we have

But x can not be 13 because BC=11-13=-2, which is not possible.

Therefore, the value of  x=2.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

probability for j is 1/4

while

a is 1/6