How many different ways can 4 rolls of film be selected from 50 rolls? (Permutation and combination question)

Number of ways to chose rolls = 5,527,200

Step-by-step explanation:

Given:

Total number of films rolls (n) = 50

Selected number of films rolls (r) = 4

Find:

Number of ways to chose rolls.

Computation.

Permutation problem.

Number of ways to chose rolls = n! / (n! - r!)

Number of ways to chose rolls = 50! / (50! - 4!)

Number of ways to chose rolls = 50! / (46!)

Number of ways to chose rolls = 50 × 49 × 48 × 47

Number of ways to chose rolls = 5,527,200

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew

the answer is (-4,-4)

hope this ! : d