-11b-4-(-b+3)
goes to -11b-4+b-3
=-10b-7
If nCk represents the number of ways k parts can be chosen from a pool of n, the probability of interest is the complement of the probability of selecting all good parts.
1 - (167C3)/(170C3) = 42,085/804,440 ≈ 0.0523
_____
nCk = n!/(k!(n-k)!)
Answer:
= 34.5
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given = 121.5, then
a₁ + (69 × 1.5) = 121.5
a₁ + 103.5 = 121.5 ( subtract 103.5 from both sides )
a₁ = 18
Hence
= 18 + (11 × 1.5) = 18 + 16.5 = 34.5
Answer:
C
Step-by-step explanation:
f(x) =
stretch vertically by 3
f(x) = 3
reflect across the x-axis
f(x) = -3
shift right 1 unit
f(x) = -3
shift up 2 units
f(x) = -3 + 2