Please make sure it is correct it is important

Pi = 3.14  we can call p

Qu 1) p = 1.57 = 1/2 pi = coordinates (1.57 , -3) = x = 1.57 y = -3

Qu 2) p = 7.85 = 1/2 pi x 5 = coordinates ( 7.85 . -3) = x = 7.85 y= -3

Step-by-step explanation:

Qu. 1) p = 3.14/2 = 1.57

Qu 2) p = 1.57 +3.14 +3.14 = 7.85

=1.57 x 5 = 7.85

Step-by-step explanation:

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%

1/800 is the right answer