A medical equipment industry manufacturers x-ray machines. The unit cost C ( the cost in dollars to make each x-ray machine) depend on the number of machines made. If x machines are made, then the unit cost is given by the function C (x) =1.1x^2-638x+101,067. What is the minimum unit cost?

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

An octagonal prism has jow many lateral faces?