What is the length of BC in the right triangle below?
B
12
A
16
С
O A. 20
B. 4
C. 196
OD. 28
O E. 400
OF. 96

BC = 20

A. ) 20

Step-by-step explanation:

AB = 12

AC = 16

BC = ?

Pythagoras theorem

AB² + AC² = BC²

12² + 16² = BC²

144 + 256 = BC²

400 = BC²

BC = √400

BC = 20

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%