3. A spinner with 25 equal areas, is numbered 1 - 25. If the spinner is spun once, what is the probability that the result is divisible by 3?
4. A spinner with 50 equal areas, is numbered 1-50. If the spinner is spun once, what
is the probability that the result is divisible by 7?
!
5. In a music class of 22 students, 5 play the violin and 11 play trumpets. There are 3
students who play both instruments. What is the probability that a student chosen at
random plays the violin or the trumpet?

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

the eight graders whould be the answer

step-by-step explanation: could you give me 5 stars

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3