In a group of 25 students, 12 students play basketball, 11 students play football. five students play both sports. a student is chosen randomly from this group. what is the probability that the student plays either basketball or football?

  18/25 = 72%

Step-by-step explanation:

P(B ∪ F) = P(B) + P(F) - P(B ∩ F)

  = 12/25 + 11/25 - 5/25

  = 18/25

The probability a randomly chosen student plays either sport is 18/25 = 72%.

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

step-by-step explanation: