Chứng minh công thức sau đây là hằng đúng bằng hai phương pháp ( lập bảng và biến đổi tương đương ) : 1 . ( m →(N v Q)) →((M→N) v (M→Q)) 2.((T v U) → V) → (T → (U → V))

Little’s law firm has just one lawyer. customers arrive randomly at an average rate of 6 per 8 hour workday. service times have a mean of 50 minutes and a standard deviation of 20 minutes. how long does a customer spend at little’s law firm on average?

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000