The perimeter of rectangle abcd is 256 inches. its length is 3 times as long as its width. find the area of triangle abc.

Step-by-step explanation:

The formula of a perimeter of a rectangle:

The formula of an area of a rectangle:

l - lenght

w - width

We have l = 3w and the perimeter P = 256 in. Substitute:

              divide both sides by 2

              divide both sides by 4

Calculate the area of a rectangle:

The triangle ABC is the half of the rectangle. Therefore the area of a triangle ABC is:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

2x + 8

step-by-step explanation: