Your friend finds the area of a circle with a diameter of 9 inches. Is your friend correct? Explain

No, they're not. To find the area of a circle you need to square the radius. They did not square the radius but instead multiplied it by 2.

Step-by-step explanation:

I hope this helps :)

 1/2 = 50%

Step-by-step explanation:

There are 3 different shirts, 2 different slacks, and 1 tie.

The total possible different outfits is: 3 x 2 x 1 = 6

Event A: 1 shirt x 1 slacks x 1 tie = 1 successful outcome

                                   out of 6 total possible outcomes

                                             P(A) = 1/6

Event B: 1 shirt x 2 slacks x 1 tie = 2 successful outcomes

                                      out of 6 total possible outcomes

                                             P(B) = 2/6

P(A or B) = P(A) + P(B) - P(A∩B)

               =  1/6 + 2/6   -  0

               =  3/6

               =  1/2     simplified