Acertain circle in the xy-plane has its center at the origin. if p is a point on the circle, what is the sum of the squares of the coordinates of p?

r²    where r is the radius of the circle

Step-by-step explanation:

the equation of any circle that its center is the origin is : x² + y² = r²

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%

i’m sorry but i don’t know sorry